1.直接写出得数。
$\frac{3}{4} × 8 =$
$\frac{3}{7} × \frac{7}{9} =$
$\frac{7}{23} × 0 =$
$\frac{2}{9} × \frac{9}{14} =$
$\frac{1}{6} × \frac{6}{7} =$
$\frac{3}{5} × \frac{5}{12} =$
$9 × \frac{5}{18} =$
$21 × \frac{7}{3} =$
$\frac{2}{25} × \frac{5}{2} =$
$\frac{2}{3} + \frac{4}{3} =$
$\frac{6}{7} × \frac{7}{36} =$
$\frac{6}{11} × \frac{11}{30} =$
$\frac{3}{14} × \frac{7}{6} =$
$\frac{5}{18} × 2 =$
$2 - \frac{1}{3} =$
$\frac{2}{7} × \frac{2}{7} =$

$\frac{3}{4} × 8 = 6$
$\frac{3}{7} × \frac{7}{9} = \frac{1}{3}$
$\frac{7}{23} × 0 = 0$
$\frac{2}{9} × \frac{9}{14} = \frac{1}{7}$
$\frac{1}{6} × \frac{6}{7} = \frac{1}{7}$
$\frac{3}{5} × \frac{5}{12} = \frac{1}{4}$
$9 × \frac{5}{18} = \frac{5}{2}$
$21 × \frac{7}{3} = 49$
$\frac{2}{25} × \frac{5}{2} = \frac{1}{5}$
$\frac{2}{3} + \frac{4}{3} = 2$
$\frac{6}{7} × \frac{7}{36} = \frac{1}{6}$
$\frac{6}{11} × \frac{11}{30} = \frac{1}{5}$
$\frac{3}{14} × \frac{7}{6} = \frac{1}{4}$
$\frac{5}{18} × 2 = \frac{5}{9}$
$2 - \frac{1}{3} = \frac{5}{3}$
$\frac{2}{7} × \frac{2}{7} = \frac{4}{49}$

2.在○里填上“＞”“＜”或“=”。
$\frac{2}{5}+\frac{2}{5}+\frac{2}{5}$ ○ $4×\frac{2}{5}$
$1-\frac{5}{11}$ ○ $1×\frac{5}{11}$
$18×\frac{8}{9}$ ○ $17$
$\frac{3}{16}×8$ ○ $\frac{2}{3}$
$24×\frac{1}{12}$ ○ $\frac{3}{2}$
$7×\frac{2}{7}$ ○ $\frac{2}{7}×8$

$\frac{2}{5}+\frac{2}{5}+\frac{2}{5} = \frac{6}{5}$
$4×\frac{2}{5} = \frac{8}{5}$
$\frac{2}{5}+\frac{2}{5}+\frac{2}{5} ＜ 4×\frac{2}{5}$
$1-\frac{5}{11} = \frac{6}{11}$
$1×\frac{5}{11} = \frac{5}{11}$
$1-\frac{5}{11} ＞ 1×\frac{5}{11}$
$18×\frac{8}{9} = 16$
$16 ＜ 17$
$18×\frac{8}{9} ＜ 17$
$\frac{3}{16}×8 = \frac{3}{2}$
$\frac{3}{2} ＞ \frac{2}{3}$
$\frac{3}{16}×8 ＞ \frac{2}{3}$
$24×\frac{1}{12} = 2$
$2 ＞ \frac{3}{2}$
$24×\frac{1}{12} ＞ \frac{3}{2}$
$7×\frac{2}{7} = 2$
$\frac{2}{7}×8 = \frac{16}{7}$
$2 ＜ \frac{16}{7}$
$7×\frac{2}{7} ＜ \frac{2}{7}×8$

3.算一算，将结果相同的苹果涂上相同的颜色。

小华和小丽做手工。小华用了一条长为$\frac{3}{5}$m的彩带，小丽用的彩带长度是小华用的$\frac{2}{3}$。小华和小丽做手工一共用了多少米彩带？
反思 我错了（）道题。 自我评价：

$\frac{2}{3}×36=24$
$\frac{7}{25}×15=\frac{21}{5}$
$\frac{3}{7}×56=24$
$22×\frac{3}{11}=6$
$\frac{2}{5}×15=6$
$\frac{3}{35}×49=\frac{21}{5}$
将结果为24的$\frac{2}{3}×36$和$\frac{3}{7}×56$的苹果涂相同颜色，结果为$\frac{21}{5}$的$\frac{7}{25}×15$和$\frac{3}{35}×49$的苹果涂相同颜色，结果为6的$22×\frac{3}{11}$和$\frac{2}{5}×15$的苹果涂相同颜色。
$\frac{3}{5} × \frac{2}{3} = \frac{2}{5}$（米）
$\frac{3}{5} + \frac{2}{5} = 1$（米）
答：小华和小丽做手工一共用了1米彩带。