{"article_info":{"article_id":148218,"cat_id":1541,"cat_title":"SBT Toán 8 - Chân trời sáng tạo","publish_time":1693303080,"cat_id2":1541,"is_link":0,"thumbnail":"https://img.loigiaihay.com/picture/article/2023/0829/resize_1-0_71.png","title":"Giải bài 4 trang 25 sách bài tập toán 8 - Chân trời sáng tạo","label":"Bài 4 trang 25 sách bài tập toán 8 - Chân trời sáng tạo","alias":"giai-bai-4-trang-25-sach-bai-tap-toan-8-chan-troi-sang-tao","introtext":"Thực hiện các phép chia phân thức sau:\r\na) \\(\\frac{{5x}}{{6y}}:\\frac{{10{x^2}}}{9}\\);\r\n","content":"<style>\r\n.method-close-icon{position: relative;float: right;top: 6px;transform: rotate(270deg);-ms-transform:rotate(270deg);-moz-transform:rotate(270deg);-webkit-transform:rotate(270deg);-o-transform:rotate(270deg);}\r\n.method-open-icon{position: relative;float: right;top: 6px;}\r\n</style>\r\n<p><strong style=\"font-size: 16px;\">Đề bài</strong></p><p>Thực hiện các phép chia phân thức sau:</p>\r\n<p>a) \\(\\frac{{5x}}{{6y}}:\\frac{{10{x^2}}}{9}\\);</p>\r\n<p>b) \\(\\frac{{ - xy}}{8}:\\frac{{{x^2}}}{{4y}}\\);</p>\r\n<p>c) \\(\\frac{7}{{9{x^2}}}:\\frac{{ - 14y}}{{3{x^3}}}\\);</p>\r\n<p>d) \\(\\frac{{3x}}{{2y}}:\\left( {6{x^2}{y^2}} \\right)\\).</p><div id=\"pos_end_question\"></div><div style=\"padding-top: 10px;padding-bottom: 2px;margin-bottom: 10px;\"><p class=\"show-detail-method\" style=\"background: #654bc2;text-align: center;border-radius:5px;padding: 10px;margin-bottom: 0px;\" onclick=\"showDetailMethod();\"><strong style=\"font-size: 16px;\">Phương pháp giải - Xem chi tiết</strong><img class=\"method-open-icon\" id=\"method_colapse_icon\" src=\"data:image/png;base64,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\"></p>  <div class=\"content_method_content\" style=\"padding: 10px 10px 5px 10px;border: dashed 1px #654bc2;border-top:none;\"><p>Thực hiện các phép chia phân thức sau:</p>\r\n<p>a) \\(\\frac{{5x}}{{6y}}:\\frac{{10{x^2}}}{9}\\);</p>\r\n<p>b) \\(\\frac{{ - xy}}{8}:\\frac{{{x^2}}}{{4y}}\\);</p>\r\n<p>c) \\(\\frac{7}{{9{x^2}}}:\\frac{{ - 14y}}{{3{x^3}}}\\);</p>\r\n<p>d) \\(\\frac{{3x}}{{2y}}:\\left( {6{x^2}{y^2}} \\right)\\).</p>  </div>\r\n<script type=\"text/javascript\">\r\n    var is_open =true;\r\n    function showDetailMethod(){\r\n        if(is_open){\r\n            document.querySelector(\".content_method_content\").style.display='none';\r\n            document.getElementById(\"method_colapse_icon\").classList.remove(\"method-open-icon\");\r\n            document.getElementById(\"method_colapse_icon\").classList.add(\"method-close-icon\");\r\n        }else{\r\n            document.querySelector(\".content_method_content\").style.display='block';\r\n            document.getElementById(\"method_colapse_icon\").classList.remove(\"method-close-icon\");\r\n            document.getElementById(\"method_colapse_icon\").classList.add(\"method-open-icon\");\r\n        }\r\n        is_open = !is_open;\r\n    }\r\n</script>\r\n</div><p><strong style=\"font-size: 16px;\">Lời giải chi tiết</strong></p><p>a) \\(\\frac{{5x}}{{6y}}:\\frac{{10{x^2}}}{9} = \\frac{{5x}}{{6y}}.\\frac{9}{{10{x^2}}} = \\frac{{5x.3.3}}{{3.2y.5.2x.x}} = \\frac{3}{{4xy}}\\);</p>\r\n<p>b) \\(\\frac{{ - xy}}{8}:\\frac{{{x^2}}}{{4y}} = \\frac{{ - xy}}{{4.2}}.\\frac{{4y}}{{x.x}} = \\frac{{ - xy.4y}}{{4.2.x.x}} = \\frac{{ - {y^2}}}{{2x}}\\);</p>\r\n<p>c) \\(\\frac{7}{{9{x^2}}}:\\frac{{ - 14y}}{{3{x^3}}} = \\frac{7}{{3.3{x^2}}}.\\frac{{3{x^2}.x}}{{ - 2.7y}} = \\frac{{7.3{x^2}.x}}{{3.3{x^2}.\\left( { - 2} \\right).7y}} = \\frac{{ - x}}{{6y}}\\);</p>\r\n<p>d) \\(\\frac{{3x}}{{2y}}:\\left( {6{x^2}{y^2}} \\right) = \\frac{{3x}}{{2y}}.\\frac{1}{{6{x^2}{y^2}}} = \\frac{{3x}}{{2y.2.3x.x.{y^2}}} = \\frac{1}{{4x{y^3}}}\\).</p>","common_article":"","display_type":1,"vungoi_exam_id":"","article_type":1,"cmt_count":0,"zip_status":1,"last_modified_time":1693303181,"last_zip_time":1693303181,"zip_link":"https://offline.loigiaihay.com/articles/1541/148218/148218_1693303181.zip","picture":"https://img.loigiaihay.com/picture/article/2023/0829/1-0_71.png","youtube_id":"","video_start_time":"0","quizlet_id":"0","ref_article_id":0,"readmore_display_type":0,"wiki":0,"comment_url":"https://loigiaihay.com/comment/giai-bai-4-trang-25-sach-bai-tap-toan-8-chan-troi-sang-tao-c1541a148218.html","origin_url":"https://loigiaihay.com/giai-bai-4-trang-25-sach-bai-tap-toan-8-chan-troi-sang-tao-c1541a148218.html","relate_link":[],"exam_file":"","solution_file":""},"callouts":[],"relate_articles":[],"others_in_cat":[{"article_id":148219,"cat_id":1541,"publish_time":1693303140,"is_link":0,"thumbnail":"https://img.loigiaihay.com/picture/article/2023/0829/resize_1-0_72.png","title":"Giải bài 5 trang 25 sách bài tập toán 8 - Chân trời sáng tạo","alias":"giai-bai-5-trang-25-sach-bai-tap-toan-8-chan-troi-sang-tao","introtext":"Tính:\r\na) \\(\\frac{{{x^2} - 5x}}{{4{y^2}}}:\\frac{{5x}}{{2y}}\\);","display_type":1,"article_type":1},{"article_id":148220,"cat_id":1541,"publish_time":1693303260,"is_link":0,"thumbnail":"https://img.loigiaihay.com/picture/article/2023/0829/resize_1-0_73.png","title":"Giải bài 6 trang 25 sách bài tập toán 8 - Chân trời sáng tạo","alias":"giai-bai-6-trang-25-sach-bai-tap-toan-8-chan-troi-sang-tao","introtext":"Năm ngoái, trên diện tích a (ha) nông trại thu hoạch được m (tấn) khoai lang. Năm nay so với năm ngoái, nông trại giảm 3 ha diện tích trồng khoai lang","display_type":1,"article_type":1},{"article_id":148223,"cat_id":1541,"publish_time":1693303320,"is_link":0,"thumbnail":"https://img.loigiaihay.com/picture/article/2023/0829/resize_1-0_74.png","title":"Giải bài 7 trang 25 sách bài tập toán 8 - Chân trời sáng tạo","alias":"giai-bai-7-trang-25-sach-bai-tap-toan-8-chan-troi-sang-tao","introtext":"Thu gọn các biểu thức sau:\r\na) \\(\\frac{{16 - {a^2}}}{{{a^2} + 8a + 16}}:\\frac{{a - 4}}{{2a + 4}}.\\frac{{a + 4}}{{a + 2}}\\);\r\n","display_type":1,"article_type":1},{"article_id":148225,"cat_id":1541,"publish_time":1693303380,"is_link":0,"thumbnail":"https://img.loigiaihay.com/picture/article/2023/0829/resize_1-0_76.png","title":"Giải bài 8 trang 25 sách bài tập toán 8 - Chân trời sáng tạo","alias":"giai-bai-8-trang-25-sach-bai-tap-toan-8-chan-troi-sang-tao","introtext":"Tính:\r\na) \\(\\left( {\\frac{1}{y} + \\frac{2}{{x - y}}} \\right)\\left( {x - \\frac{{{x^2} + {y^2}}}{{x + y}}} \\right)\\);\r\n","display_type":1,"article_type":1},{"article_id":148217,"cat_id":1541,"publish_time":1693303020,"is_link":0,"thumbnail":"https://img.loigiaihay.com/picture/article/2023/0829/resize_1-0_70.png","title":"Giải bài 3 trang 25 sách bài tập toán 8 - Chân trời sáng tạo","alias":"giai-bai-3-trang-25-sach-bai-tap-toan-8-chan-troi-sang-tao","introtext":"Tính:\r\na) \\(\\frac{{{x^2} - 2xy}}{y}.\\frac{{{y^2}}}{x}\\);\t","display_type":1,"article_type":1},{"article_id":148214,"cat_id":1541,"publish_time":1693302900,"is_link":0,"thumbnail":"https://img.loigiaihay.com/picture/article/2023/0829/resize_1-0_69.png","title":"Giải bài 2 trang 25 sách bài tập toán 8 - Chân trời sáng tạo","alias":"giai-bai-2-trang-25-sach-bai-tap-toan-8-chan-troi-sang-tao","introtext":"Thực hiện các phép nhân phân thức sau:\r\na) \\(\\frac{{5x}}{{4y}}.\\frac{{6y}}{{5{x^2}}}\\);\r\n","display_type":1,"article_type":1},{"article_id":148211,"cat_id":1541,"publish_time":1693302840,"is_link":0,"thumbnail":"https://img.loigiaihay.com/picture/article/2023/0829/resize_1-0_68.png","title":"Giải bài 1 trang 25 sách bài tập toán 8 - Chân trời sáng tạo","alias":"giai-bai-1-trang-25-sach-bai-tap-toan-8-chan-troi-sang-tao","introtext":"Thực hiện các phép nhân phân thức sau:\r\na) \\(\\frac{3}{{5a}}.\\frac{{2b}}{5}\\)\t\r\n","display_type":1,"article_type":1}],"event_info":{"title":"Bài 7. 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