1. 直接写出得数。
$2 - \frac{2}{5} =$
$\frac{1}{5} + \frac{1}{6} =$
$\frac{1}{4} ÷ \frac{4}{7} =$
$\frac{5}{12} × \frac{3}{5} =$
$1 ÷ \frac{8}{7} =$
$\frac{4}{9} × 12 =$
$5.6 × \frac{2}{7} =$
$\frac{9}{14} ÷ 3 =$
$\frac{2}{5} × 40\% =$
$\frac{1}{6} + \frac{5}{6} =$
$\frac{1}{2} × \frac{1}{3} =$
$\frac{2}{3} + \frac{3}{4} =$
$\frac{7}{9} × 7 =$
$\frac{7}{20} ÷ \frac{6}{7} =$
$\frac{3}{4} ÷ \frac{8}{9} =$
$\frac{6}{7} × 0.42 =$

1. $1\frac{3}{5}$ $\frac{11}{30}$ $\frac{7}{16}$ $\frac{1}{4}$ $\frac{7}{8}$ $\frac{16}{3}$ $1.6$ $\frac{3}{14}$ $\frac{4}{25}$ $1$ $\frac{1}{6}$ $\frac{17}{12}$ $\frac{49}{9}$ $\frac{49}{120}$ $\frac{27}{32}$ $0.36$

2. 填表。

2. (竖排)$36\%$ $\frac{9}{25}$ $0.005$ $\frac{1}{200}$
$55\%$ $0.55$ $0.125$ $\frac{1}{8}$
$68\%$ $\frac{17}{25}$ $87.5\%$ $0.875$

3. 在○里填上“＞”“＜”或“=”。
$\frac{5}{9} ÷ \frac{6}{7} ◯ \frac{5}{9}$
$\frac{7}{8} × \frac{10}{9} ◯ \frac{7}{8}$
$\frac{8}{7} ÷ \frac{3}{4} ◯ \frac{8}{7} × \frac{4}{3}$
$24 × \frac{7}{8} ◯ 24$
$\frac{11}{18} ◯ \frac{11}{18} ÷ \frac{5}{4}$
$\frac{5}{7} × \frac{9}{11} ◯ \frac{9}{7} ÷ \frac{5}{11}$

＞ ＞ ＝
＜ ＞ ＜

4. 计算下面各题，能简算的要简算。
$\frac{1}{5}×39+\frac{3}{5}×17$
$(\frac{1}{3}+\frac{11}{12}-\frac{3}{4})÷\frac{1}{24}$
$74×\frac{31}{75}$
$101×\frac{17}{99}$
$(\frac{2}{3}+\frac{3}{4}-\frac{3}{8})÷\frac{1}{24}$
$\frac{10}{21}÷(\frac{11}{24}-\frac{7}{36})×\frac{19}{30}$
$(\frac{1}{4}+\frac{5}{6})×36$
$4.8×60\% +5.2×\frac{3}{5}$
$\frac{5}{6}-\frac{5}{8}÷5+\frac{1}{2}$

18 12 $30\frac{44}{75}$
$17\frac{34}{99}$ 25 $\frac{8}{7}$
39 6 $\frac{29}{24}$