$\frac{4}{9} ÷ \frac{4}{9} =$
$\frac{4}{9} × \frac{4}{9} =$
$\frac{4}{9} + \frac{4}{9} =$
$\frac{4}{9} - \frac{4}{9} =$
$\frac{2}{7} ÷ \frac{8}{21} =$
$\frac{25}{99} ÷ \frac{5}{9} =$
$\frac{15}{8} ÷ \frac{45}{16} =$
$0.56 ÷ \frac{28}{29} =$
$\frac{5}{24} ÷ \frac{3}{5} =$
$\frac{11}{18} ÷ \frac{11}{24} =$
$\frac{15}{13} ÷ \frac{25}{26} =$
$\frac{16}{21} ÷ \frac{4}{9} =$
$\frac{12}{11} ÷ 6 =$
$1\frac{2}{3} ÷ 1\frac{2}{3} =$
$77 × \frac{1}{14} =$
$\frac{34}{39} ÷ 17 =$

1. 1
$\frac{16}{81}$
$\frac{8}{9}$
0
$\frac{3}{4}$
$\frac{5}{11}$
$\frac{2}{3}$
0.58
$\frac{25}{72}$
$\frac{4}{3}$
$\frac{6}{5}$
$\frac{12}{7}$
$\frac{2}{11}$
1
$\frac{11}{2}$
$\frac{2}{39}$

2 比大小（在○里填上“＞”“＜”或“=”）
建议用时2分钟 评价：☆☆☆
$8÷\frac{6}{5}$○8
$\frac{2}{11}÷\frac{1}{2}$○$\frac{2}{11}$
$\frac{3}{5}÷\frac{3}{2}$○$\frac{3}{5}×\frac{2}{3}$
$\frac{5}{7}÷\frac{5}{6}$○$\frac{5}{7}$
$73÷\frac{3}{4}$○73
$\frac{1}{3}÷12$○$\frac{1}{3}×12$

2. ＜
＞
=
＞
＞
＜

3 脱式计算（能简算的要简算） 建议用时4分钟 评价：☆☆☆。

$\frac{13}{7} - \frac{6}{7} ÷ \frac{27}{28} - \frac{1}{9}$
$\frac{8}{9} ÷ \frac{5}{6} ÷ \frac{4}{5}$
$\frac{9}{32} × \frac{4}{3} ÷ \frac{7}{16}$
$(\frac{2}{3} + \frac{5}{9}) ÷ \frac{20}{21}$
$\frac{11}{9} ÷ \frac{7}{12} - \frac{2}{9} ÷ \frac{7}{12}$
$(\frac{5}{8} - \frac{1}{6}) ÷ (\frac{5}{9} + \frac{2}{3})$

3. $\frac{6}{7}$
$\frac{4}{3}$
$\frac{6}{7}$
$\frac{77}{60}$
$\frac{12}{7}$
$\frac{3}{8}$

拆分法 巧算。
$98÷\frac{97}{99}$
$57\frac{19}{23}÷19$

4. $100\frac{2}{97}$
$3\frac{1}{23}$