{"id":15928,"date":"2025-07-02T16:35:04","date_gmt":"2025-07-02T09:35:04","guid":{"rendered":"https:\/\/www.ckconitsha.com\/vn\/?p=15928"},"modified":"2025-07-03T19:35:23","modified_gmt":"2025-07-03T12:35:23","slug":"cac-buoc-so-sanh-hai-phan-so-cung-mau-so-toan-lop-4-chi-tiet","status":"publish","type":"post","link":"https:\/\/www.ckconitsha.com\/vn\/cac-buoc-so-sanh-hai-phan-so-cung-mau-so-toan-lop-4-chi-tiet\/","title":{"rendered":"C\u00e1c b\u01b0\u1edbc so s\u00e1nh hai ph\u00e2n s\u1ed1 c\u00f9ng m\u1eabu s\u1ed1 to\u00e1n l\u1edbp 4 chi ti\u1ebft"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_79_2 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.ckconitsha.com\/vn\/cac-buoc-so-sanh-hai-phan-so-cung-mau-so-toan-lop-4-chi-tiet\/#Vi_du_ve_viec_so_sanh_hai_phan_so_va_hinh_thuc\" >V\u00ed d\u1ee5 v\u1ec1 vi\u1ec7c so s\u00e1nh hai ph\u00e2n s\u1ed1 v\u00e0 h\u00ecnh th\u1ee9c<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.ckconitsha.com\/vn\/cac-buoc-so-sanh-hai-phan-so-cung-mau-so-toan-lop-4-chi-tiet\/#Cac_quy_tac_de_giai_toan_so_sanh_hai_phan_so_co_cung_mau_so\" >C\u00e1c quy t\u1eafc \u0111\u1ec3 gi\u1ea3i to\u00e1n so s\u00e1nh hai ph\u00e2n s\u1ed1 c\u00f3 c\u00f9ng m\u1eabu s\u1ed1<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.ckconitsha.com\/vn\/cac-buoc-so-sanh-hai-phan-so-cung-mau-so-toan-lop-4-chi-tiet\/#Cac_loai_bai_tap_ve_nha_so_sanh_voi_2_phan_so_cua_cung_mot_mau\" >C\u00e1c lo\u1ea1i b\u00e0i t\u1eadp v\u1ec1 nh\u00e0 so s\u00e1nh v\u1edbi 2 ph\u00e2n s\u1ed1 c\u1ee7a c\u00f9ng m\u1ed9t m\u1eabu<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.ckconitsha.com\/vn\/cac-buoc-so-sanh-hai-phan-so-cung-mau-so-toan-lop-4-chi-tiet\/#Mau_1_So_sanh_phan_so\" >M\u1eabu 1: So s\u00e1nh ph\u00e2n s\u1ed1<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.ckconitsha.com\/vn\/cac-buoc-so-sanh-hai-phan-so-cung-mau-so-toan-lop-4-chi-tiet\/#Mau_2_So_sanh_cac_phan_so_voi_1\" >M\u1eabu 2: So s\u00e1nh c\u00e1c ph\u00e2n s\u1ed1 v\u1edbi 1<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.ckconitsha.com\/vn\/cac-buoc-so-sanh-hai-phan-so-cung-mau-so-toan-lop-4-chi-tiet\/#Mau_3_Sap_xep\" >M\u1eabu 3: S\u1eafp x\u1ebfp<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.ckconitsha.com\/vn\/cac-buoc-so-sanh-hai-phan-so-cung-mau-so-toan-lop-4-chi-tiet\/#Bai_tap_so_sanh_hai_phan_so_voi_cung_mot_mau_so\" >B\u00e0i t\u1eadp so s\u00e1nh hai ph\u00e2n s\u1ed1 v\u1edbi c\u00f9ng m\u1ed9t m\u1eabu s\u1ed1<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.ckconitsha.com\/vn\/cac-buoc-so-sanh-hai-phan-so-cung-mau-so-toan-lop-4-chi-tiet\/#Bi_quyet_de_hoc_va_giai_quyet_cac_bai_tap_de_so_sanh_cac_phan_so_va_cac_mau_hieu_qua\" >B\u00ed quy\u1ebft \u0111\u1ec3 h\u1ecdc v\u00e0 gi\u1ea3i quy\u1ebft c\u00e1c b\u00e0i t\u1eadp \u0111\u1ec3 so s\u00e1nh c\u00e1c ph\u00e2n s\u1ed1 v\u00e0 c\u00e1c m\u1eabu hi\u1ec7u qu\u1ea3<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.ckconitsha.com\/vn\/cac-buoc-so-sanh-hai-phan-so-cung-mau-so-toan-lop-4-chi-tiet\/#Ket_luan\" >K\u1ebft lu\u1eadn<\/a><\/li><\/ul><\/nav><\/div>\n<\/p>\n<p>So s\u00e1nh hai ph\u00e2n s\u1ed1 v\u00e0 m\u1eabu l\u00e0 lo\u1ea1i b\u00e0i t\u1eadp \u0111\u00e1p \u1ee9ng t\u1eeb ch\u01b0\u01a1ng tr\u00ecnh to\u00e1n l\u1edbp 4 tr\u1edf l\u00ean. \u0110\u1ec3 gi\u00fap h\u1ecd hi\u1ec3u, c\u0169ng nh\u01b0 chinh ph\u1ee5c h\u00ecnh th\u1ee9c to\u00e1n h\u1ecdc n\u00e0y m\u1ed9t c\u00e1ch ch\u00ednh x\u00e1c h\u01a1n, \u0111\u1eebng b\u1ecf qua vi\u1ec7c chia s\u1ebb c\u1ee7a kh\u1ec9 sau \u0111\u00e2y.<\/p>\n<p>                                                                    <img decoding=\"async\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img_default\/monkey3.png\" alt=\"\"><\/p>\n<p class=\"title\">H\u00e0ng tri\u1ec7u tr\u1ebb em \u0111\u00e3 ph\u00e1t tri\u1ec3n c\u00e1c k\u1ef9 n\u0103ng ng\u00f4n ng\u1eef c\u1ee7a ch\u00fang th\u00f4ng qua c\u00e1c \u1ee9ng d\u1ee5ng h\u1ecdc t\u1eadp c\u1ee7a kh\u1ec9<\/p>\n<p class=\"description\">\u0110\u0103ng k\u00fd ngay \u0111\u1ec3 \u0111\u01b0\u1ee3c t\u01b0 v\u1ea5n mi\u1ec5n ph\u00ed v\u1ec1 c\u00e1c s\u1ea3n ph\u1ea9m v\u00e0 tuy\u1ebfn h\u1ecdc h\u1ecdc cho tr\u1ebb em.<\/p>\n<p>                                                                            *Vui l\u00f2ng ki\u1ec3m tra t\u00ean \u0111\u1ea7y \u0111\u1ee7 c\u1ee7a b\u1ea1n *Vui l\u00f2ng ki\u1ec3m tra s\u1ed1 \u0111i\u1ec7n tho\u1ea1i h\u01a1n 2.000 t\u1eeb &amp; 6.000 c\u00e2u ti\u1ebfng Anh \u0111\u1ec3 ph\u00e1t tri\u1ec3n to\u00e0n di\u1ec7n 4 k\u1ef9 n\u0103ng ti\u1ebfng Anh t\u1ed1t &#8211; ti\u1ebfng Anh theo c\u00e1c ph\u01b0\u01a1ng ph\u00e1p hi\u1ec7n \u0111\u1ea1i ph\u00e1t tri\u1ec3n kh\u1ea3 n\u0103ng EQ &amp; Vi\u1ec7t Nam *B\u1ea1n ch\u01b0a ch\u1ecdn b\u1ea5t k\u1ef3 m\u1ee5c n\u00e0o! \u0110\u0103ng k\u00fd t\u01b0 v\u1ea5n mi\u1ec5n ph\u00ed<\/p>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Vi_du_ve_viec_so_sanh_hai_phan_so_va_hinh_thuc\"><\/span>V\u00ed d\u1ee5 v\u1ec1 vi\u1ec7c so s\u00e1nh hai ph\u00e2n s\u1ed1 v\u00e0 h\u00ecnh th\u1ee9c<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">So v\u1edbi so s\u00e1nh ki\u1ebfn \u200b\u200bth\u1ee9c v\u1edbi hai ph\u00e2n s\u1ed1 kh\u00e1c v\u1edbi bi\u1ec3u m\u1eabu, vi\u1ec7c so s\u00e1nh 2 ph\u00e2n s\u1ed1 v\u00e0 m\u1eabu s\u1ebd d\u1ec5 d\u00e0ng h\u01a1n nhi\u1ec1u. Ch\u00fang ta c\u00f3 th\u1ec3 xem x\u00e9t v\u00ed d\u1ee5 sau:<\/p>\n<p dir=\"ltr\"><em>So s\u00e1nh ph\u00e2n s\u1ed1: 2\/15 v\u00e0 6\/15<\/em><\/p>\n<ul>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\"><em>B\u01b0\u1edbc 1: Ch\u00fang ta th\u1ea5y, c\u1ea3 hai ph\u00e2n s\u1ed1 \u1edf tr\u00ean \u0111\u1ec1u c\u00f3 c\u00f9ng m\u1eabu s\u1ed1 15, do \u0111\u00f3 s\u1ebd kh\u00f4ng c\u1ea7n ph\u1ea3i chuy\u1ec3n \u0111\u1ed5i bi\u1ec3u m\u1eabu.<\/em><\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\"><em>B\u01b0\u1edbc 2: Ti\u1ebfn h\u00e0nh so s\u00e1nh s\u1ed1 2 v\u00e0 6. Ch\u00fang ta c\u00f3 2 &lt;6<\/em><\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\"><em>B\u01b0\u1edbc 3: K\u1ebft lu\u1eadn<\/em><\/p>\n<\/li>\n<\/ul>\n<p dir=\"ltr\"><em>Ch\u00fang t\u00f4i th\u1ea5y b\u1edfi v\u00ec 2 &lt;6 v\u00ec v\u1eady ch\u00fang t\u00f4i c\u00f3 2\/15 &lt;6\/15<\/em><\/p>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Cac_quy_tac_de_giai_toan_so_sanh_hai_phan_so_co_cung_mau_so\"><\/span>C\u00e1c quy t\u1eafc \u0111\u1ec3 gi\u1ea3i to\u00e1n so s\u00e1nh hai ph\u00e2n s\u1ed1 c\u00f3 c\u00f9ng m\u1eabu s\u1ed1<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">C\u00e1c quy t\u1eafc \u0111\u1ec3 so s\u00e1nh 2 ph\u00e2n s\u1ed1 v\u00e0 m\u1eabu c\u0169ng kh\u00e1 \u0111\u01a1n gi\u1ea3n, ch\u00fang ch\u1ec9 c\u1ea7n nh\u1edb c\u00e1c quy t\u1eafc sau:<\/p>\n<ul>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">N\u1ebfu s\u1ed1 nh\u1ecf h\u01a1n, ph\u1ea7n nh\u1ecf h\u01a1n.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">N\u1ebfu s\u1ed1 l\u1edbn h\u01a1n, s\u1ed1 l\u01b0\u1ee3ng l\u1edbn h\u01a1n.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">N\u1ebfu s\u1ed1 l\u01b0\u1ee3ng hai ph\u00e2n s\u1ed1 b\u1eb1ng nhau, hai ph\u00e2n s\u1ed1 b\u1eb1ng nhau.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Ph\u1ea7n c\u00f3 c\u00e1i ch\u1ebft l\u1edbn h\u01a1n 1<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Ph\u00e2n s\u1ed1 c\u00f3 nh\u1ecf h\u01a1n m\u00f4 h\u00ecnh, ph\u1ea7n nh\u1ecf h\u01a1n 1.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Ph\u00e2n s\u1ed1 c\u00f3 c\u00f9ng ph\u1ea7n t\u1eed v\u00e0 m\u1eabu b\u1eb1ng 1.<\/p>\n<\/li>\n<\/ul>\n<p dir=\"ltr\"><em>V\u00ed d\u1ee5: 5\/120 v\u00e0 4\/120, ch\u00fang t\u00f4i c\u00f3 m\u1eabu s\u1ed1 chung (MSC) l\u00e0 120<\/em><\/p>\n<p dir=\"ltr\"><em>Ch\u00fang ta c\u00f3, s\u1ed1 l\u01b0\u1ee3ng chung c\u1ee7a c\u1ea3 hai ph\u00e2n s\u1ed1 l\u00e0 20, nh\u01b0ng s\u1ed1 ch\u1ebft 5&gt; 4<\/em><\/p>\n<p dir=\"ltr\"><em>Suy ra: 5\/120&gt; 4\/120<\/em><\/p>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Cac_loai_bai_tap_ve_nha_so_sanh_voi_2_phan_so_cua_cung_mot_mau\"><\/span>C\u00e1c lo\u1ea1i b\u00e0i t\u1eadp v\u1ec1 nh\u00e0 so s\u00e1nh v\u1edbi 2 ph\u00e2n s\u1ed1 c\u1ee7a c\u00f9ng m\u1ed9t m\u1eabu<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">Trong so s\u00e1nh ki\u1ebfn \u200b\u200bth\u1ee9c v\u1edbi hai ph\u00e2n s\u1ed1 c\u00f3 c\u00f9ng m\u1eabu s\u1ed1, ch\u00fang s\u1ebd g\u1eb7p ph\u1ea3i c\u00e1c lo\u1ea1i b\u00e0i t\u1eadp sau:<\/p>\n<p dir=\"ltr\"><img decoding=\"async\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/so-sanh-hai-phan-so-cung-mau-1.jpg\" alt=\"C\u00f3 nhi\u1ec1u lo\u1ea1i b\u00e0i t\u1eadp v\u1ec1 so s\u00e1nh c\u00e1c ph\u00e2n s\u1ed1 v\u00e0 c\u00e1c m\u1eabu c\u1ea7n ph\u1ea3i r\u00f5 r\u00e0ng. (\u1ea2nh: B\u1ed9 s\u01b0u t\u1eadp Internet)\" width=\"100%\"><\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Mau_1_So_sanh_phan_so\"><\/span>M\u1eabu 1: So s\u00e1nh ph\u00e2n s\u1ed1<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">Gi\u1ea3i ph\u00e1p: \u00c1p d\u1ee5ng c\u00e1c quy t\u1eafc c\u1ee7a c\u00e1c ph\u00e2n s\u1ed1 c\u00f3 t\u1eed vong l\u1edbn h\u01a1n, n\u00f3 l\u1edbn h\u01a1n v\u00e0 ng\u01b0\u1ee3c l\u1ea1i \u0111\u1ec3 gi\u1ea3i quy\u1ebft b\u00e0i t\u1eadp ch\u00ednh x\u00e1c.<\/p>\n<p dir=\"ltr\"><em>V\u00ed d\u1ee5: Trong hai ph\u00e2n s\u1ed1 8\/13 v\u00e0 11\/13, ph\u1ea7n n\u00e0o l\u1edbn h\u01a1n?<\/em><\/p>\n<p dir=\"ltr\"><em>H\u01b0\u1edbng d\u1eabn gi\u1ea3i ph\u00e1p:<\/em><\/p>\n<p dir=\"ltr\"><em>Hai ph\u00e2n s\u1ed1 8\/13 v\u00e0 11\/13 c\u00f3 c\u00f9ng m\u1eabu s\u1ed1 13 v\u00ec v\u1eady ch\u00fang t\u00f4i \u0111i \u0111\u1ebfn so s\u00e1nh c\u00e1c s\u1ed1.<\/em><\/p>\n<p dir=\"ltr\"><em>Ph\u00e2n b\u00f3n 8\/133 v\u1edbi s\u1ed1 b\u1eb1ng 8, ph\u00e2n s\u1ed1 11\/13 v\u1edbi s\u1ed1 b\u1eb1ng 11.<\/em><\/p>\n<p dir=\"ltr\"><em>B\u1edfi v\u00ec 8 &lt;11, ireled 8\/13 &lt;11\/13  <\/em><\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Mau_2_So_sanh_cac_phan_so_voi_1\"><\/span>M\u1eabu 2: So s\u00e1nh c\u00e1c ph\u00e2n s\u1ed1 v\u1edbi 1<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">Gi\u1ea3i ph\u00e1p: D\u1ef1a tr\u00ean quy t\u1eafc n\u1ebfu s\u1ed1 nh\u1ecf h\u01a1n m\u1eabu, ph\u1ea7n nh\u1ecf h\u01a1n 1 v\u00e0 ng\u01b0\u1ee3c l\u1ea1i.<\/p>\n<p dir=\"ltr\"><em>V\u00ed d\u1ee5: Trong c\u00e1c ph\u00e2n s\u1ed1 b\u00ean d\u01b0\u1edbi, ph\u1ea7n n\u00e0o l\u00e0 nh\u1ecf h\u01a1n 1? <\/em><\/p>\n<p dir=\"ltr\"><em>1\/4; 3\/3<\/em><\/p>\n<p dir=\"ltr\"><em>H\u01b0\u1edbng d\u1eabn gi\u1ea3i ph\u00e1p:<\/em><\/p>\n<p dir=\"ltr\"><em>Ph\u01b0\u01a1ng ph\u00e1p 1: Ph\u00e2n b\u00f3n 1\/4 c\u00f3 m\u1ed9t s\u1ed1 nh\u1ecf h\u01a1n m\u1eabu s\u1ed1, do \u0111\u00f3 s\u1ed1 1\/4 nh\u1ecf h\u01a1n 1.<\/em><\/p>\n<p dir=\"ltr\"><em>Ph\u01b0\u01a1ng ph\u00e1p 2: Ch\u00fang ta th\u1ea5y: 1\/4 &lt;4\/4, nh\u01b0ng 4\/4 = 1 v\u00ec v\u1eady 1\/4 &lt;1<\/em><\/p>\n<p dir=\"ltr\"><em>T\u01b0\u01a1ng t\u1ef1:<\/em><\/p>\n<p dir=\"ltr\"><em>V\u1edbi 5\/3, c\u00e1i ch\u1ebft l\u1edbn h\u01a1n m\u1eabu, v\u00ec v\u1eady ph\u1ea7n n\u00e0y s\u1ebd l\u1edbn h\u01a1n 1.<\/em><\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Mau_3_Sap_xep\"><\/span>M\u1eabu 3: S\u1eafp x\u1ebfp<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">Ph\u01b0\u01a1ng ph\u00e1p gi\u1ea3i ph\u00e1p: H\u1ecd c\u0169ng s\u1ebd \u00e1p d\u1ee5ng c\u1ea3 hai quy t\u1eafc so s\u00e1nh s\u1ed1 ho\u1eb7c so s\u00e1nh v\u1edbi 1 \u0111\u1ec3 s\u1eafp x\u1ebfp theo \u0111\u00fang th\u1ee9 t\u1ef1.<\/p>\n<p dir=\"ltr\"><em>V\u00ed d\u1ee5: S\u1eafp x\u1ebfp c\u00e1c ph\u00e2n s\u1ed1 sau theo th\u1ee9 t\u1ef1 t\u1eeb tr\u1ebb \u0111\u1ebfn l\u1edbn.<\/em><\/p>\n<p dir=\"ltr\"><em>17\/31; 35\/31; 27\/31<\/em><\/p>\n<p dir=\"ltr\"><em>H\u01b0\u1edbng d\u1eabn gi\u1ea3i ph\u00e1p:<\/em><\/p>\n<p dir=\"ltr\"><em>B\u1edfi v\u00ec c\u00e1c ph\u00e2n s\u1ed1 \u0111\u00e3 \u0111\u01b0a ra c\u00f9ng m\u1ed9t m\u1eabu, ch\u00fang t\u00f4i \u0111i \u0111\u1ec3 so s\u00e1nh t\u1eed s\u1ed1.<\/em><\/p>\n<p dir=\"ltr\"><em>\u0110\u00e2y: 17 &lt;27 &lt;35 So 17\/31  27\/31<\/em><\/p>\n<p dir=\"ltr\"><em>=&gt; C\u00e1c ph\u00e2n s\u1ed1 s\u1ebd \u0111\u01b0\u1ee3c s\u1eafp x\u1ebfp theo th\u1ee9 t\u1ef1 t\u1eeb nh\u1ecf \u0111\u1ebfn l\u1edbn nh\u01b0 sau: 17\/31; 27\/31; 35\/31<\/em><\/p>\n<p dir=\"ltr\">\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Bai_tap_so_sanh_hai_phan_so_voi_cung_mot_mau_so\"><\/span>B\u00e0i t\u1eadp so s\u00e1nh hai ph\u00e2n s\u1ed1 v\u1edbi c\u00f9ng m\u1ed9t m\u1eabu s\u1ed1<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">Sau khi n\u1eafm b\u1eaft l\u00fd thuy\u1ebft, \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 b\u00e0i t\u1eadp cho tr\u1ebb th\u1ef1c h\u00e0nh:<\/p>\n<p dir=\"ltr\"><img decoding=\"async\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/so-sanh-hai-phan-so-cung-mau-2.jpg\" alt=\"(Ngu\u1ed3n: T\u00f3m t\u1eaft)\" width=\"100%\"><\/p>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Bi_quyet_de_hoc_va_giai_quyet_cac_bai_tap_de_so_sanh_cac_phan_so_va_cac_mau_hieu_qua\"><\/span>B\u00ed quy\u1ebft \u0111\u1ec3 h\u1ecdc v\u00e0 gi\u1ea3i quy\u1ebft c\u00e1c b\u00e0i t\u1eadp \u0111\u1ec3 so s\u00e1nh c\u00e1c ph\u00e2n s\u1ed1 v\u00e0 c\u00e1c m\u1eabu hi\u1ec7u qu\u1ea3<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">\u0110\u1ec3 gi\u00fap tr\u1ebb hi\u1ec3u, hi\u1ec3u ki\u1ebfn \u200b\u200bth\u1ee9c v\u00e0 gi\u1ea3i quy\u1ebft c\u00e1c b\u00e0i t\u1eadp ch\u00ednh x\u00e1c, \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 m\u1eb9o m\u00e0 cha m\u1eb9 \u00e1p d\u1ee5ng cho tr\u1ebb em:<\/p>\n<p dir=\"ltr\"><img decoding=\"async\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/so-sanh-hai-phan-so-cung-mau-3.jpg\" alt=\"Cha m\u1eb9 n\u00ean t\u1ea1o c\u01a1 h\u1ed9i cho tr\u1ebb th\u1ef1c h\u00e0nh th\u01b0\u1eddng xuy\u00ean. (\u1ea2nh: B\u1ed9 s\u01b0u t\u1eadp Internet)\" width=\"100%\"><\/p>\n<ul>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">H\u00e3y ch\u1eafc ch\u1eafn r\u1eb1ng l\u00fd thuy\u1ebft n\u00e0y l\u00e0 \u0111i\u1ec1u c\u1ea7n thi\u1ebft: Tr\u1ebb em s\u1ebd kh\u00f4ng gi\u1ea3i quy\u1ebft b\u00e0i t\u1eadp n\u1ebfu ch\u00fang kh\u00f4ng bi\u1ebft l\u00fd thuy\u1ebft v\u1ec1 c\u00e1c ph\u00e2n s\u1ed1 nh\u01b0 ch\u1eef s\u1ed1, m\u1ec7nh gi\u00e1, h\u1ed9i t\u1ee5 s\u1ed1 m\u1eabu, b\u00e1nh r\u0103ng, r\u00fat \u200b\u200bng\u1eafn s\u1ed1 &#8230; \u0110\u00e2y l\u00e0 t\u1ea5t c\u1ea3 n\u1ec1n t\u1ea3ng c\u01a1 b\u1ea3n \u0111\u1ec3 gi\u00fap tr\u1ebb gi\u1ea3i quy\u1ebft c\u00e1c b\u00e0i t\u1eadp ph\u00e2n s\u1ed1 ch\u00ednh x\u00e1c m\u00e0 cha m\u1eb9 c\u1ea7n \u0111\u1ea3m b\u1ea3o em b\u00e9 \u0111\u00e3 n\u1eafm b\u1eaft \u0111\u01b0\u1ee3c.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">\u00c1p d\u1ee5ng nhi\u1ec1u gi\u1ea3i ph\u00e1p kh\u00e1c nhau: V\u1edbi c\u00e1c b\u00e0i t\u1eadp so s\u00e1nh ph\u00e2n s\u1ed1, s\u1ebd c\u00f3 nhi\u1ec1u gi\u1ea3i ph\u00e1p kh\u00e1c nhau nh\u01b0 chuy\u1ec3n \u0111\u1ed5i m\u1eabu s\u1ed1, s\u1ed1 l\u01b0\u1ee3ng h\u1ecdc sinh, so s\u00e1nh v\u1edbi 1, so v\u1edbi ph\u00e2n s\u1ed1 trung gian &#8230;. t\u00f9y thu\u1ed9c v\u00e0o m\u1ed7i b\u00e0i t\u1eadp cha m\u1eb9, b\u1ea1n n\u00ean h\u01b0\u1edbng d\u1eabn con b\u1ea1n ch\u1ecdn gi\u1ea3i ph\u00e1p th\u00edch h\u1ee3p, nhanh h\u01a1n v\u00e0 ch\u00ednh x\u00e1c h\u01a1n.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Th\u1ef1c h\u00e0nh th\u01b0\u1eddng xuy\u00ean l\u00e0 r\u1ea5t quan tr\u1ecdng: sau khi em b\u00e9 n\u1eafm b\u1eaft l\u00fd thuy\u1ebft v\u1ec1 ph\u00e2n s\u1ed1, \u0111\u1ec3 tr\u00e1nh tr\u01b0\u1eddng h\u1ee3p tr\u1ebb h\u1ecdc tr\u01b0\u1edbc, cha m\u1eb9 n\u00ean t\u1ea1o \u0111i\u1ec1u ki\u1ec7n \u0111\u1ec3 ch\u00fang th\u1ef1c h\u00e0nh nhi\u1ec1u h\u01a1n. Th\u1ef1c h\u00e0nh c\u00f3 th\u1ec3 th\u00f4ng qua c\u00e1c b\u00e0i t\u1eadp gi\u1ea3i trong s\u00e1ch gi\u00e1o khoa, t\u00ecm ki\u1ebfm ki\u1ebfn \u200b\u200bth\u1ee9c m\u1edbi tr\u00ean internet, th\u00e1ch th\u1ee9c v\u1edbi c\u00e1c b\u00e0i t\u1eadp ph\u00e2n s\u1ed1 n\u00e2ng cao &#8230;<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Nghi\u00ean c\u1ee9u to\u00e1n h\u1ecdc b\u1eb1ng to\u00e1n h\u1ecdc v\u1edbi Shining Home &#8211; Gia \u0111\u00ecnh Anh Ng\u1eef Math: \u0110\u00e2y l\u00e0 m\u1ed9t \u1ee9ng d\u1ee5ng gi\u1ea3ng d\u1ea1y to\u00e1n song ng\u1eef cho tr\u1ebb m\u1eabu gi\u00e1o v\u00e0 tr\u01b0\u1eddng ti\u1ec3u h\u1ecdc \u0111\u01b0\u1ee3c ph\u00e1t tri\u1ec3n b\u1edfi Shining Home &#8211; Gia \u0111\u00ecnh Anh Ng\u1eef. V\u1edbi \u1ee9ng d\u1ee5ng n\u00e0y, tr\u1ebb em s\u1ebd h\u1ecdc t\u1ea5t c\u1ea3 c\u00e1c ki\u1ebfn \u200b\u200bth\u1ee9c to\u00e1n h\u1ecdc theo ch\u01b0\u01a1ng tr\u00ecnh gi\u1ea3ng d\u1ea1y c\u1ee7a ch\u00fang d\u01b0\u1edbi d\u1ea1ng video, h\u00ecnh \u1ea3nh ho\u1ea1t h\u00ecnh h\u00e0i h\u01b0\u1edbc, k\u1ebft h\u1ee3p v\u1edbi h\u01a1n 10.000 ho\u1ea1t \u0111\u1ed9ng t\u01b0\u01a1ng t\u00e1c \u0111\u1ec3 gi\u00fap tr\u1ebb ch\u01a1i v\u1eeba h\u1ecdc c\u00e1ch k\u00edch th\u00edch b\u1ed9 n\u00e3o h\u1ecdc to\u00e1n nhi\u1ec1u h\u01a1n. C\u00f9ng v\u1edbi vi\u1ec7c d\u1ea1y ti\u1ebfng Anh s\u1ebd t\u1ea1o ra c\u01a1 h\u1ed9i \u0111\u1ec3 gi\u00fap tr\u1ebb h\u1ecdc song ng\u1eef v\u1edbi chi ph\u00ed c\u1ef1c k\u1ef3 ti\u1ebft ki\u1ec7m ch\u1ec9 2k\/ng\u00e0y.<\/p>\n<\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" style=\"margin-left: auto;margin-right: auto\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/timhieungay.png\" alt=\"\" width=\"185\" height=\"38\"><\/p>\n<p style=\"text-align: center\"><a href=\"https:\/\/www.youtube.com\/watch?v=7DSJPVHFROS\" target=\"_blank\" rel=\"noopener\">https:\/\/www.youtube.com\/watch?v=7DSJPVHFROS<\/a><\/p>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Ket_luan\"><\/span>K\u1ebft lu\u1eadn<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<\/p>\n<p dir=\"ltr\">Tr\u00ean \u0111\u00e2y l\u00e0 ki\u1ebfn \u200b\u200bth\u1ee9c c\u01a1 b\u1ea3n nh\u1ea5t v\u1ec1 c\u00e1c gi\u1ea3i ph\u00e1p \u0111\u1ec3 so s\u00e1nh hai ph\u00e2n s\u1ed1 v\u00e0 m\u1eabu. Hy v\u1ecdng d\u1ef1a tr\u00ean vi\u1ec7c chia s\u1ebb \u1edf tr\u00ean, ph\u1ee5 huynh v\u00e0 tr\u1ebb em c\u00f3 th\u1ec3 ho\u00e0n to\u00e0n hi\u1ec3u v\u00e0 th\u1ef1c h\u00e0nh t\u1ed1t nh\u1ea5t.<\/p>\n<p>Ngu\u1ed3n: <a href=\"http:\/\/www.ckconitsha.com\/vn\/\">http:\/\/www.ckconitsha.com\/vn\/<\/a> T\u00e1c gi\u1ea3: <a href=\"https:\/\/www.ckconitsha.com\/vn\/author\/nguyenlandung\">Nguy\u1ec5n L\u00e2n d\u0169ng<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>So s\u00e1nh hai ph\u00e2n s\u1ed1 v\u00e0 m\u1eabu l\u00e0 lo\u1ea1i b\u00e0i t\u1eadp \u0111\u00e1p \u1ee9ng t\u1eeb ch\u01b0\u01a1ng tr\u00ecnh to\u00e1n l\u1edbp 4 tr\u1edf l\u00ean. \u0110\u1ec3 gi\u00fap h\u1ecd hi\u1ec3u, c\u0169ng nh\u01b0 chinh ph\u1ee5c h\u00ecnh th\u1ee9c to\u00e1n h\u1ecdc n\u00e0y m\u1ed9t c\u00e1ch ch\u00ednh x\u00e1c h\u01a1n, \u0111\u1eebng b\u1ecf qua vi\u1ec7c chia s\u1ebb c\u1ee7a kh\u1ec9 sau \u0111\u00e2y. H\u00e0ng tri\u1ec7u tr\u1ebb em \u0111\u00e3 ph\u00e1t&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[100],"tags":[],"class_list":["post-15928","post","type-post","status-publish","format-standard","hentry","category-kien-thuc"],"_links":{"self":[{"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/posts\/15928","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/comments?post=15928"}],"version-history":[{"count":2,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/posts\/15928\/revisions"}],"predecessor-version":[{"id":22815,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/posts\/15928\/revisions\/22815"}],"wp:attachment":[{"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/media?parent=15928"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/categories?post=15928"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/tags?post=15928"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}