{"save":1,"level":1,"time":"45","total":20,"point":5,"segment":[{"id":"246","test_id":"235","question":"<p>Trong c&aacute;c ph&acirc;n s\u1ed1 <span class=\"math-tex\">$\\frac{5}{6}&nbsp;, \\frac{4}{6}&nbsp;, \\frac{6}{12}&nbsp;, \\frac{6}{9}&nbsp;, \\frac{10}{15}&nbsp;, \\frac{8}{15}&nbsp;, \\frac{18}{27}&nbsp;, \\frac{26}{39}&nbsp;,$<\/span> nh\u1eefng ph&acirc;n s\u1ed1 b\u1eb1ng ph&acirc;n s\u1ed1 <span class=\"math-tex\">$\\frac{2}{3}$<\/span>&nbsp;l&agrave;:&nbsp;<\/p>","options":["A. <span class=\"math-tex\">$\\frac{4}{6}&nbsp;, \\frac{6}{9}&nbsp;, \\frac{10}{15}&nbsp;, \\frac{18}{27}&nbsp;, \\frac{26}{39}$<\/span>","B. <span class=\"math-tex\">$\\frac{5}{6}&nbsp;, \\frac{6}{9}&nbsp;, \\frac{10}{15}&nbsp;, \\frac{18}{27}&nbsp;, \\frac{26}{39}$<\/span>","C. <span class=\"math-tex\">$\\frac{4}{6}&nbsp;, \\frac{6}{12}&nbsp;, \\frac{10}{15}&nbsp;, \\frac{18}{27}&nbsp;, \\frac{26}{39}$<\/span>","D. <span class=\"math-tex\">$\\frac{4}{6}&nbsp;, \\frac{6}{9}&nbsp;, \\frac{10}{15}&nbsp;, \\frac{8}{15}$<\/span>"],"correct":"1","answer":"<p>Khi c&ugrave;ng nh&acirc;n ho\u1eb7c chia c\u1ea3 t\u1eed s\u1ed1 v&agrave; m\u1eabu s\u1ed1 c\u1ee7a ph&acirc;n s\u1ed1 <span class=\"math-tex\">$\\frac{2}{3}$<\/span> v\u1edbi m\u1ed9t s\u1ed1, th&igrave; ta \u0111\u01b0\u1ee3c ph&acirc;n s\u1ed1 m\u1edbi b\u1eb1ng ph&acirc;n s\u1ed1 \u0111&atilde; cho.<br \/>C&aacute;c ph&acirc;n s\u1ed1 b\u1eb1ng <span class=\"math-tex\">$\\frac{2}{3}$<\/span> l&agrave;:&nbsp; <span class=\"math-tex\">$\\frac{4}{6} = \\frac{6}{9} = \\frac{10}{15} = \\frac{18}{27} = \\frac{26}{39}$<\/span><br \/>V\u1eady \u0111&aacute;p &aacute;n \u0111&uacute;ng l&agrave; <strong>A<\/strong>.<\/p>","type":"choose","user_id":"54","test":"2","date":"2020-03-14 09:40:11"},{"id":"247","test_id":"235","question":"<div class=\"tb_banghuongdan\"><div class=\"banghd_col bd_left\"><div class=\"_cl_1\">H\u1ed7n s\u1ed1&nbsp;<span class=\"math-tex\">$15\\frac{7}{8}$<\/span> \u0111\u01b0\u1ee3c chuy\u1ec3n th&agrave;nh ph&acirc;n s\u1ed1 n&agrave;o d\u01b0\u1edbi \u0111&acirc;y?<\/div><\/div><\/div>","options":["A.&nbsp;<span class=\"math-tex\">$\\frac{127}{15}$<\/span>","B.&nbsp;<span class=\"math-tex\">$\\frac{127}{8}$<\/span>","C.&nbsp;<span class=\"math-tex\">$\\frac{127}{7}$<\/span>","D.&nbsp;<span class=\"math-tex\">$\\frac{120}{7}$<\/span>"],"correct":"2","answer":"<p>Ta c&oacute;: &nbsp;<span class=\"math-tex\">$15\\frac{7}{8}$<\/span>&nbsp;=&nbsp;<span class=\"math-tex\">$\\frac{15 \\times 8 + 7}{8}$<\/span>&nbsp;=&nbsp;<span class=\"math-tex\">$\\frac{127}{8}$<\/span><br \/>V\u1eady \u0111&aacute;p &aacute;n \u0111&uacute;ng l&agrave; <strong>B<\/strong><\/p><p>&nbsp;<\/p>","type":"choose","user_id":"54","test":"0","date":"2020-03-14 09:43:39"}]}