第70页 - 苏教版六年级伴你学数学答案（上下册）

$\frac{3}{10}$

$\frac{3}{5}$

10

12

2

0

$2\frac{1}{3}$

$\frac{1}{6}$

$=\frac {5}{12}+\frac {6}{12}$

$=\frac {11}{12}$

$=\frac {2}{5}÷\frac {2}{5}÷\frac {3}{4}$

$=1÷\frac {3}{4}$

$=\frac {4}{3}$

$=\frac {2}{5}×\frac {1}{12}$

$=\frac {1}{30}$

$=\frac {1}{2}+(\frac {4}{7}+\frac {3}{7})$

$=\frac {1}{2}+1$

$=\frac {3}{2}$

$=\frac {13}{10}×\frac {1}{7}+\frac {13}{10}×\frac {6}{7}$

$=\frac {13}{10}×(\frac {1}{7}+\frac {6}{7})$

$=\frac {13}{10}×1$

$=\frac {13}{10}$

$=36×\frac {1}{4}+36×\frac {2}{3}$

$=9+24$

$=33$

$1+3+4=8$

$256×(\frac {4}{8}-\frac {1}{8})=96(本)$

$答：下层比上层多放96本图书。$

$45×\frac {4}{5}÷3=12(千克)$

$答：每个油箱装12千克。$