计算下面各题。$\frac{2}{13} ÷ \frac{2}{5} ÷ \frac{1}{2}$
答案:
解:$\frac{2}{13} × \frac{5}{2} × 2 = \frac{10}{13}$
$\frac{5}{11} × \frac{2}{5} ÷ \frac{5}{13}$
答案:
解:$\frac{2}{11} × \frac{13}{5} = \frac{26}{55}$
$\frac{5}{18} ÷ \frac{7}{9} × \frac{27}{35}$
答案:
解:$\frac{5}{18} × \frac{9}{7} × \frac{27}{35} = \frac{135}{490} = \frac{27}{98}$
$\frac{5}{3} ÷ 10 ÷ \frac{1}{36}$
答案:
解:$\frac{5}{3} × \frac{1}{10} × 36 = 6$
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