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1. 直接写出得数。
$20÷\frac{2}{5}=$
$14÷\frac{7}{9}=$
$6÷\frac{3}{2}=$
$8÷\frac{2}{3}=$
$12÷\frac{4}{5}=$
$0÷\frac{5}{12}=$
$\frac{6}{7}÷2=$
$\frac{3}{4}÷12=$
$16÷\frac{1}{2}=$
$\frac{7}{9}÷\frac{1}{3}=$
$\frac{3}{8}÷\frac{5}{12}=$
$\frac{5}{6}÷\frac{5}{7}=$
$\frac{1}{15}÷\frac{1}{9}=$
$\frac{2}{7}÷6=$
$\frac{4}{15}÷\frac{7}{5}=$
$2÷\frac{1}{3}=$
$\frac{2}{11}÷\frac{3}{7}=$
$\frac{2}{5}÷5=$
$\frac{5}{11}÷\frac{2}{5}=$
$\frac{3}{8}÷\frac{1}{4}=$
$\frac{5}{12}÷\frac{10}{3}=$
$\frac{3}{4}÷3=$
$\frac{1}{7}÷\frac{5}{21}=$
$32÷\frac{4}{9}=$
$\frac{32}{15}÷\frac{4}{5}=$
$\frac{1}{4}÷\frac{5}{8}=$
$\frac{1}{5}÷\frac{5}{8}=$
$0÷\frac{4}{15}=$
$\frac{3}{8}÷\frac{1}{4}=$
$\frac{5}{12}÷\frac{2}{3}=$
。
$20÷\frac{2}{5}=$
$14÷\frac{7}{9}=$
$6÷\frac{3}{2}=$
$8÷\frac{2}{3}=$
$12÷\frac{4}{5}=$
$0÷\frac{5}{12}=$
$\frac{6}{7}÷2=$
$\frac{3}{4}÷12=$
$16÷\frac{1}{2}=$
$\frac{7}{9}÷\frac{1}{3}=$
$\frac{3}{8}÷\frac{5}{12}=$
$\frac{5}{6}÷\frac{5}{7}=$
$\frac{1}{15}÷\frac{1}{9}=$
$\frac{2}{7}÷6=$
$\frac{4}{15}÷\frac{7}{5}=$
$2÷\frac{1}{3}=$
$\frac{2}{11}÷\frac{3}{7}=$
$\frac{2}{5}÷5=$
$\frac{5}{11}÷\frac{2}{5}=$
$\frac{3}{8}÷\frac{1}{4}=$
$\frac{5}{12}÷\frac{10}{3}=$
$\frac{3}{4}÷3=$
$\frac{1}{7}÷\frac{5}{21}=$
$32÷\frac{4}{9}=$
$\frac{32}{15}÷\frac{4}{5}=$
$\frac{1}{4}÷\frac{5}{8}=$
$\frac{1}{5}÷\frac{5}{8}=$
$0÷\frac{4}{15}=$
$\frac{3}{8}÷\frac{1}{4}=$
$\frac{5}{12}÷\frac{2}{3}=$
。
答案
1. $20÷\frac{2}{5}=50$
$14÷\frac{7}{9}=18$
$6÷\frac{3}{2}=4$
$8÷\frac{2}{3}=12$
$12÷\frac{4}{5}=15$
$0÷\frac{5}{12}=0$
$\frac{6}{7}÷2=\frac{3}{7}$
$\frac{3}{4}÷12=\frac{1}{16}$
$16÷\frac{1}{2}=32$
$\frac{7}{9}÷\frac{1}{3}=\frac{7}{3}$
$\frac{3}{8}÷\frac{5}{12}=\frac{9}{10}$
$\frac{5}{6}÷\frac{5}{7}=\frac{7}{6}$
$\frac{1}{15}÷\frac{1}{9}=\frac{3}{5}$
$\frac{2}{7}÷6=\frac{1}{21}$
$\frac{4}{15}÷\frac{7}{5}=\frac{4}{21}$
$2÷\frac{1}{3}=6$
$\frac{2}{11}÷\frac{3}{7}=\frac{14}{33}$
$\frac{2}{5}÷5=\frac{2}{25}$
$\frac{5}{11}÷\frac{2}{5}=\frac{25}{22}$
$\frac{3}{8}÷\frac{1}{4}=\frac{3}{2}$
$\frac{5}{12}÷\frac{10}{3}=\frac{1}{8}$
$\frac{3}{4}÷3=\frac{1}{4}$
$\frac{1}{7}÷\frac{5}{21}=\frac{3}{5}$
$32÷\frac{4}{9}=72$
$\frac{32}{15}÷\frac{4}{5}=\frac{8}{3}$
$\frac{1}{4}÷\frac{5}{8}=\frac{2}{5}$
$\frac{1}{5}÷\frac{5}{8}=\frac{8}{25}$
$0÷\frac{4}{15}=0$
$\frac{3}{8}÷\frac{1}{4}=\frac{3}{2}$
$\frac{5}{12}÷\frac{2}{3}=\frac{5}{8}$
$14÷\frac{7}{9}=18$
$6÷\frac{3}{2}=4$
$8÷\frac{2}{3}=12$
$12÷\frac{4}{5}=15$
$0÷\frac{5}{12}=0$
$\frac{6}{7}÷2=\frac{3}{7}$
$\frac{3}{4}÷12=\frac{1}{16}$
$16÷\frac{1}{2}=32$
$\frac{7}{9}÷\frac{1}{3}=\frac{7}{3}$
$\frac{3}{8}÷\frac{5}{12}=\frac{9}{10}$
$\frac{5}{6}÷\frac{5}{7}=\frac{7}{6}$
$\frac{1}{15}÷\frac{1}{9}=\frac{3}{5}$
$\frac{2}{7}÷6=\frac{1}{21}$
$\frac{4}{15}÷\frac{7}{5}=\frac{4}{21}$
$2÷\frac{1}{3}=6$
$\frac{2}{11}÷\frac{3}{7}=\frac{14}{33}$
$\frac{2}{5}÷5=\frac{2}{25}$
$\frac{5}{11}÷\frac{2}{5}=\frac{25}{22}$
$\frac{3}{8}÷\frac{1}{4}=\frac{3}{2}$
$\frac{5}{12}÷\frac{10}{3}=\frac{1}{8}$
$\frac{3}{4}÷3=\frac{1}{4}$
$\frac{1}{7}÷\frac{5}{21}=\frac{3}{5}$
$32÷\frac{4}{9}=72$
$\frac{32}{15}÷\frac{4}{5}=\frac{8}{3}$
$\frac{1}{4}÷\frac{5}{8}=\frac{2}{5}$
$\frac{1}{5}÷\frac{5}{8}=\frac{8}{25}$
$0÷\frac{4}{15}=0$
$\frac{3}{8}÷\frac{1}{4}=\frac{3}{2}$
$\frac{5}{12}÷\frac{2}{3}=\frac{5}{8}$
2. 解决问题。
3 张同样大小的饼，平均每人吃$\frac{3}{4}$张，可以分给几人吃？先分一分，再算一算。
3 张同样大小的饼，平均每人吃$\frac{3}{4}$张，可以分给几人吃？先分一分，再算一算。
答案
2. 分一分参考
，$3÷\frac{3}{4}=4$(人) 答：可以分给4人吃。3. 算一算。
$\frac{6}{7} ÷ 2 = \frac{(\quad)}{(\quad)} ◯ \frac{(\quad)}{(\quad)} = \frac{(\quad)}{(\quad)}$
$12 ÷ \frac{2}{3} = (\quad) ◯ \frac{(\quad)}{(\quad)} = (\quad)$
$\frac{3}{14} ÷ \frac{6}{7} = \frac{(\quad)}{(\quad)} ◯ \frac{(\quad)}{(\quad)} = \frac{(\quad)}{(\quad)}$
$\frac{5}{6} ÷ \frac{5}{7} = \frac{(\quad)}{(\quad)} ◯ \frac{(\quad)}{(\quad)} = \frac{(\quad)}{(\quad)}$
$\frac{6}{7} ÷ 2 = \frac{(\quad)}{(\quad)} ◯ \frac{(\quad)}{(\quad)} = \frac{(\quad)}{(\quad)}$
$12 ÷ \frac{2}{3} = (\quad) ◯ \frac{(\quad)}{(\quad)} = (\quad)$
$\frac{3}{14} ÷ \frac{6}{7} = \frac{(\quad)}{(\quad)} ◯ \frac{(\quad)}{(\quad)} = \frac{(\quad)}{(\quad)}$
$\frac{5}{6} ÷ \frac{5}{7} = \frac{(\quad)}{(\quad)} ◯ \frac{(\quad)}{(\quad)} = \frac{(\quad)}{(\quad)}$
答案
3. $\frac{6}{7}×\frac{1}{2}=\frac{3}{7}$
$12×\frac{3}{2}=18$
$\frac{3}{14}×\frac{7}{6}=\frac{1}{4}$
$\frac{5}{6}×\frac{7}{5}=\frac{7}{6}$
$12×\frac{3}{2}=18$
$\frac{3}{14}×\frac{7}{6}=\frac{1}{4}$
$\frac{5}{6}×\frac{7}{5}=\frac{7}{6}$
