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一、在$◯$里填上“＞”“＜”或“=”。
$\frac{6}{7} ÷ \frac{1}{5} ◯ \frac{6}{7}$
$\frac{4}{9} × \frac{3}{4} ◯ \frac{4}{9} ÷ \frac{3}{4}$
$\frac{3}{10} + \frac{2}{3} ◯ \frac{3}{10} ÷ \frac{2}{3}$
$\frac{1}{3} ÷ \frac{4}{3} ◯ \frac{1}{3}$
$\frac{2}{5} ÷ 2 ◯ \frac{2}{5} × 2$
$\frac{2}{3} ÷ \frac{5}{4} ◯ \frac{2}{3} × \frac{5}{4}$
$\frac{13}{8} ÷ \frac{8}{3} ◯ \frac{13}{8}$
$\frac{8}{11} × 3 ◯ \frac{8}{11} ÷ \frac{1}{3}$
$\frac{4}{7} ÷ \frac{7}{4} ◯ \frac{4}{7} + \frac{4}{7}$
$\frac{6}{7} ÷ \frac{1}{5} ◯ \frac{6}{7}$
$\frac{4}{9} × \frac{3}{4} ◯ \frac{4}{9} ÷ \frac{3}{4}$
$\frac{3}{10} + \frac{2}{3} ◯ \frac{3}{10} ÷ \frac{2}{3}$
$\frac{1}{3} ÷ \frac{4}{3} ◯ \frac{1}{3}$
$\frac{2}{5} ÷ 2 ◯ \frac{2}{5} × 2$
$\frac{2}{3} ÷ \frac{5}{4} ◯ \frac{2}{3} × \frac{5}{4}$
$\frac{13}{8} ÷ \frac{8}{3} ◯ \frac{13}{8}$
$\frac{8}{11} × 3 ◯ \frac{8}{11} ÷ \frac{1}{3}$
$\frac{4}{7} ÷ \frac{7}{4} ◯ \frac{4}{7} + \frac{4}{7}$
答案
1.$＞$
2.$＜$
3.$＞$
4.$＜$
5.$＜$
6.$＜$
7.$＜$
8.$=$
9.$＜$
2.$＜$
3.$＞$
4.$＜$
5.$＜$
6.$＜$
7.$＜$
8.$=$
9.$＜$
二、在括号里填上合适的数。
$\frac{3}{4} × ( ) = \frac{9}{32}$
$\frac{1}{5} × ( ) = \frac{16}{125}$
$\frac{6}{7} × ( ) = \frac{4}{7}$
$\frac{3}{5} × ( ) = \frac{2}{3}$
$\frac{2}{9} × ( ) = \frac{10}{99}$
$12 × ( ) = \frac{9}{2}$
$\frac{5}{7} × ( ) = \frac{1}{2}$
$\frac{6}{7} × ( ) = \frac{2}{3}$
$20 × ( ) = \frac{200}{13}$
$\frac{4}{5} × ( ) = \frac{6}{5}$
$\frac{8}{11} × ( ) = \frac{14}{11}$
$\frac{3}{4} × ( ) = 1$
$\frac{3}{10} × ( ) = \frac{5}{8}$
$\frac{1}{4} × ( ) = \frac{1}{6}$
$\frac{5}{4} × ( ) = \frac{5}{6}$
$\frac{5}{4} × ( ) = \frac{10}{3}$
$\frac{4}{5} × ( ) = \frac{2}{5}$
$\frac{5}{18} × ( ) = \frac{5}{24}$
$\frac{3}{4} × ( ) = \frac{9}{32}$
$\frac{1}{5} × ( ) = \frac{16}{125}$
$\frac{6}{7} × ( ) = \frac{4}{7}$
$\frac{3}{5} × ( ) = \frac{2}{3}$
$\frac{2}{9} × ( ) = \frac{10}{99}$
$12 × ( ) = \frac{9}{2}$
$\frac{5}{7} × ( ) = \frac{1}{2}$
$\frac{6}{7} × ( ) = \frac{2}{3}$
$20 × ( ) = \frac{200}{13}$
$\frac{4}{5} × ( ) = \frac{6}{5}$
$\frac{8}{11} × ( ) = \frac{14}{11}$
$\frac{3}{4} × ( ) = 1$
$\frac{3}{10} × ( ) = \frac{5}{8}$
$\frac{1}{4} × ( ) = \frac{1}{6}$
$\frac{5}{4} × ( ) = \frac{5}{6}$
$\frac{5}{4} × ( ) = \frac{10}{3}$
$\frac{4}{5} × ( ) = \frac{2}{5}$
$\frac{5}{18} × ( ) = \frac{5}{24}$
答案
1.$\frac{3}{8}$
2.$\frac{16}{25}$
3.$\frac{2}{3}$
4.$\frac{10}{9}$
5.$\frac{5}{11}$
6.$\frac{3}{8}$
7.$\frac{7}{10}$
8.$\frac{7}{9}$
9.$\frac{10}{13}$
10.$\frac{3}{2}$
11.$\frac{7}{4}$
12.$\frac{4}{3}$
13.$\frac{25}{12}$
14.$\frac{2}{3}$
15.$\frac{2}{3}$
16.$\frac{8}{3}$
17.$\frac{1}{2}$
18.$\frac{3}{4}$
2.$\frac{16}{25}$
3.$\frac{2}{3}$
4.$\frac{10}{9}$
5.$\frac{5}{11}$
6.$\frac{3}{8}$
7.$\frac{7}{10}$
8.$\frac{7}{9}$
9.$\frac{10}{13}$
10.$\frac{3}{2}$
11.$\frac{7}{4}$
12.$\frac{4}{3}$
13.$\frac{25}{12}$
14.$\frac{2}{3}$
15.$\frac{2}{3}$
16.$\frac{8}{3}$
17.$\frac{1}{2}$
18.$\frac{3}{4}$
三、计算下面各题，能用简便算法的就用简便算法。
$56×(\dfrac{4}{7}+\dfrac{5}{8}-\dfrac{3}{4})$
$(\dfrac{3}{7}+\dfrac{3}{5})×7+\dfrac{4}{5}$
$\dfrac{2}{7}×\dfrac{3}{4}÷\dfrac{2}{7}×\dfrac{3}{4}$
$\dfrac{2}{7}÷\dfrac{2}{17}+\dfrac{5}{7}×\dfrac{17}{2}$
$(\dfrac{3}{5}-\dfrac{1}{2})×\dfrac{5}{4}+\dfrac{5}{4}$
$\dfrac{5}{7}×\dfrac{1}{4}+\dfrac{3}{4}×\dfrac{5}{7}$
$(2-\dfrac{3}{2}÷\dfrac{9}{10})÷\dfrac{7}{9}$
$\dfrac{5}{12}÷11+\dfrac{1}{11}×\dfrac{7}{12}$
$\dfrac{5}{7}+\dfrac{5}{9}÷\dfrac{8}{9}+\dfrac{3}{8}$
$56×(\dfrac{4}{7}+\dfrac{5}{8}-\dfrac{3}{4})$
$(\dfrac{3}{7}+\dfrac{3}{5})×7+\dfrac{4}{5}$
$\dfrac{2}{7}×\dfrac{3}{4}÷\dfrac{2}{7}×\dfrac{3}{4}$
$\dfrac{2}{7}÷\dfrac{2}{17}+\dfrac{5}{7}×\dfrac{17}{2}$
$(\dfrac{3}{5}-\dfrac{1}{2})×\dfrac{5}{4}+\dfrac{5}{4}$
$\dfrac{5}{7}×\dfrac{1}{4}+\dfrac{3}{4}×\dfrac{5}{7}$
$(2-\dfrac{3}{2}÷\dfrac{9}{10})÷\dfrac{7}{9}$
$\dfrac{5}{12}÷11+\dfrac{1}{11}×\dfrac{7}{12}$
$\dfrac{5}{7}+\dfrac{5}{9}÷\dfrac{8}{9}+\dfrac{3}{8}$
答案
1.$25$
2.$8$
3.$\frac{9}{16}$
4.$\frac{17}{2}$
5.$\frac{11}{8}$
6.$\frac{5}{7}$
7.$\frac{3}{7}$
8.$\frac{1}{11}$
9.$1\frac{5}{7}$
2.$8$
3.$\frac{9}{16}$
4.$\frac{17}{2}$
5.$\frac{11}{8}$
6.$\frac{5}{7}$
7.$\frac{3}{7}$
8.$\frac{1}{11}$
9.$1\frac{5}{7}$
