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第70頁

信息發(fā)布者：
$\frac{3}{10}$
$\frac{3}{5}$
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$?
?$ 45×\frac {4}{5}÷3=12($?千克?$)$?
答：每個油箱裝?$12$?千克。
?$ 1+3+4=8$?
?$ 256×(\frac {4}{8}-\frac {1}{8})=96($?本?$)$?
答：下層比上層多放?$96$?本圖書。
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