{"common":{"save":0,"post_id":"4438","level":2,"total":10,"point":10,"point_extra":0},"segment":[{"id":"5849","post_id":"4438","mon_id":"1158113","chapter_id":"1158119","question":"<p>Quy \u0111\u1ed3ng m\u1eabu c&aacute;c ph&acirc;n s\u1ed1 sau:<\/p><p>&nbsp;<span class=\"math-tex\">$\\dfrac{11}{2^2.5}; \\dfrac{-7}{2^2.5^2}; \\dfrac{-23}{2.5^2}$<\/span><\/p><div class=\"lt123_imgs\"><img class=\"img_dd small\" src=\"\/data\/library\/hinh-cat-gap\/cathoa.png\" \/><\/div>","options":["<strong>A<\/strong>. <span class=\"math-tex\">$\\dfrac{11}{100}; \\dfrac{-7}{100}; \\dfrac{-23}{100}$<\/span>","<strong>B<\/strong>. <span class=\"math-tex\">$\\dfrac{55}{100}; \\dfrac{-7}{100}; \\dfrac{-46}{100}$<\/span>","<strong>C<\/strong>. <span class=\"math-tex\">$\\dfrac{22}{100}; \\dfrac{-14}{100}; \\dfrac{-46}{100}$<\/span>","<strong>D.<\/strong> <span class=\"math-tex\">$\\dfrac{55}{10}; \\dfrac{-7}{10}; \\dfrac{-46}{10}$<\/span>"],"correct":"2","level":"2","hint":"<p>T&igrave;m m\u1eabu chung v&agrave; th\u1eeba s\u1ed1 ph\u1ee5 c\u1ee7a m\u1ed7i ph&acirc;n s\u1ed1.<\/p>","answer":"<p>M\u1eabu chung l&agrave;&nbsp;<span class=\"math-tex\">$2^2.5^2= 4.25=100 $<\/span><\/p><p>X&eacute;t t\u1eebng ph&acirc;n s\u1ed1:<\/p><p><span class=\"math-tex\">$\\dfrac{11}{2^2.5} = \\dfrac{11.5}{2^2.5^2}=$<\/span>&nbsp;<span style=\"color:#16a085;\"><span class=\"math-tex\">$\\dfrac{55}{100} $<\/span><\/span><\/p><p><span class=\"math-tex\">$\\dfrac{-7}{2^2.5^2}=$<\/span>&nbsp;<span style=\"color:#16a085;\"><span class=\"math-tex\">$\\dfrac{-7}{100}$<\/span><\/span><\/p><p><span class=\"math-tex\">$\\dfrac{-23}{2.5^2}=\\dfrac{-23.2}{2^2.5^2}=$<\/span>&nbsp;<span style=\"color:#16a085;\"><span class=\"math-tex\">$\\dfrac{-46}{100}$<\/span><\/span><\/p><p>V\u1eady \u0111&aacute;p &aacute;n \u0111&uacute;ng l&agrave; <span style=\"color:#16a085;\"><strong>B<\/strong>.&nbsp;<span class=\"math-tex\">$\\dfrac{55}{100}; \\dfrac{-7}{100}; \\dfrac{-46}{100}$<\/span><\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"1","date":"2021-08-16 13:30:52","option_type":"math","len":0},{"id":"5858","post_id":"4438","mon_id":"1158113","chapter_id":"1158119","question":"<p>M\u1eb9 c&oacute; 17 qu\u1ea3 l&ecirc;. M\u1eb9 mu\u1ed1n chia \u0111\u1ec1u s\u1ed1 l&ecirc; \u0111&oacute; cho 3&nbsp;anh em. H\u1ecfi m\u1ed7i anh em \u0111\u01b0\u1ee3c m\u1ea5y qu\u1ea3 l&ecirc; v&agrave; \u0111\u01b0\u1ee3c m\u1ea5y ph\u1ea7n c\u1ee7a qu\u1ea3 l&ecirc; ?<\/p><div class=\"lt123_imgs\"><img class=\"img_dd small\" src=\"\/data\/library\/hoa-qua\/qua-le.png\" \/><\/div><p><span style=\"color:#2980b9;\">M\u1ed7i anh em \u0111\u01b0\u1ee3c&nbsp;&lt;input class=\"tim_x input_number\" tpl=\"dien_so\" type=\"text\"\/&gt;&nbsp;qu\u1ea3 l&ecirc; v&agrave; \u0111\u01b0\u1ee3c&nbsp;<span class=\"frac123\"><span class=\"ts\">&lt;input class=\"tim_x input_number\" tpl=\"dien_so\" type=\"text\"\/&gt;&lt;\/span><span class=\"ms\">&lt;input class=\"tim_x input_number\" tpl=\"dien_so\" type=\"text\"\/&gt;&lt;\/span><\/span> qu\u1ea3 l&ecirc;.<\/span><span class=\"frac123\"><span class=\"ms\"><\/span><\/span><\/p>","options":"","correct":["[\"5\",\"2\",\"3\"]"],"level":"2","hint":"<p>Ta l\u1ea5y 17 chia 3 v&agrave; \u0111\u1ed5i ph&acirc;n s\u1ed1 \u0111&oacute; sang h\u1ed7n s\u1ed1.<\/p>","answer":"<p>M\u1eb9 chia 17 qu\u1ea3 cho 3 anh em,&nbsp;m\u1ed7i anh em s\u1ebd \u0111\u01b0\u1ee3c&nbsp;<span class=\"math-tex\">$\\dfrac{17}{3}$<\/span>&nbsp;l&agrave; m\u1ed9t s\u1ed1 l&ecirc;.<\/p><p>V&igrave;&nbsp;&nbsp;<span class=\"math-tex\">$\\dfrac{17}{3}=5\\dfrac{2}{3}$<\/span>&nbsp;n&ecirc;n m\u1ed7i anh em s\u1ebd \u0111\u01b0\u1ee3c <span style=\"color:#16a085;\">5<\/span> qu\u1ea3 l&ecirc; v&agrave;&nbsp;<span style=\"color:#16a085;\"><span class=\"math-tex\">$\\dfrac{2}{3}$<\/span><\/span>&nbsp;qu\u1ea3 l&ecirc;.<\/p><p>V\u1eady c&aacute;c s\u1ed1 c\u1ea7n \u0111i\u1ec1n l\u1ea7n l\u01b0\u1ee3t l&agrave; <strong><span style=\"color:#16a085;\">5, 2, 3<\/span><\/strong>.<\/p>","type":"blank","extra_type":"","time":"0","user_id":"131","test":"1","date":"2021-08-16 14:55:54"},{"id":"5860","post_id":"4438","mon_id":"1158113","chapter_id":"1158119","question":"<p>Kh&ocirc;ng quy \u0111\u1ed3ng m\u1eabu s\u1ed1, h&atilde;y so s&aacute;nh hai ph&acirc;n s\u1ed1 sau b\u1eb1ng c&aacute;ch \u0111i\u1ec1n d\u1ea5u th&iacute;ch h\u1ee3p (&gt;; &lt;; =)<\/p><p><span class=\"math-tex\">$\\dfrac{19999}{677}$<\/span>&nbsp; &nbsp;&lt;input class=\"tim_x input_number\" tpl=\"dien_so\" type=\"text\"\/&gt;&nbsp; &nbsp;<span class=\"math-tex\">$\\dfrac{55777}{56777}$<\/span><\/p><div class=\"lt123_imgs\"><img class=\"img_dd small\" src=\"\/data\/library\/hoa-qua\/rocam.png\" \/><\/div>","options":"","correct":["[\">\"]"],"level":"2","hint":"<p>So s&aacute;nh hai ph&acirc;n s\u1ed1 tr&ecirc;n v\u1edbi 1.<\/p>","answer":"<p>So s&aacute;nh hai ph&acirc;n s\u1ed1 v\u1edbi 1, ta c&oacute;<\/p><p>&nbsp;<span class=\"math-tex\">$\\dfrac{19999}{677}$<\/span>&nbsp;&gt; 1 (v&igrave;&nbsp;19999 &gt; 677)<br \/><span class=\"math-tex\">$\\dfrac{55777}{56777}$<\/span>&nbsp;&lt; 1 ( v&igrave; 55777 &lt; 56777)<\/p><p>n&ecirc;n<span style=\"color:#16a085;\">&nbsp;<span class=\"math-tex\">$\\dfrac{19999}{677}$<\/span>&nbsp; &gt;&nbsp;<span class=\"math-tex\">$\\dfrac{55777}{56777}$<\/span><\/span><\/p><p>V\u1eady d\u1ea5u c\u1ea7n \u0111i\u1ec1n v&agrave;o &ocirc; tr\u1ed1ng&nbsp;l&agrave; <strong><span style=\"color:#16a085;\">&gt;&nbsp;<\/span><\/strong><\/p>","type":"blank","extra_type":"","time":"0","user_id":"131","test":"1","date":"2021-08-16 15:20:15"}]}