1. 直接写出得数。
实际用时:分钟
$\frac{1}{2}+\frac{2}{7}=$
$\frac{3}{4}÷12=$
$\frac{3}{7}÷\frac{7}{12}=$
$\frac{7}{6}-\frac{3}{4}=$
$\frac{3}{4}×\frac{2}{3}=$
$\frac{9}{10}-\frac{2}{5}=$
$\frac{5}{11}×\frac{2}{3}=$
$\frac{15}{7}×\frac{2}{9}=$
$\frac{7}{10}×\frac{12}{35}=$
$63×\frac{8}{9}=$
$\frac{5}{21}×\frac{3}{20}=$
$14×\frac{7}{8}=$
$\frac{3}{7}÷12=$
$\frac{7}{12}÷7=$
$\frac{12}{23}÷18=$
$\frac{5}{8}÷4=$
$\frac{4}{9}÷24=$
$\frac{2}{15}÷6=$
$\frac{4}{5}÷0.2=$
$\frac{1}{8}÷\frac{1}{4}=$
$1.6÷\frac{8}{9}=$
$\frac{5}{12}÷\frac{5}{3}=$
$\frac{8}{3}÷\frac{4}{7}=$
$\frac{19}{14}÷\frac{3}{7}=$
实际用时:分钟
$\frac{1}{2}+\frac{2}{7}=$
$\frac{3}{4}÷12=$
$\frac{3}{7}÷\frac{7}{12}=$
$\frac{7}{6}-\frac{3}{4}=$
$\frac{3}{4}×\frac{2}{3}=$
$\frac{9}{10}-\frac{2}{5}=$
$\frac{5}{11}×\frac{2}{3}=$
$\frac{15}{7}×\frac{2}{9}=$
$\frac{7}{10}×\frac{12}{35}=$
$63×\frac{8}{9}=$
$\frac{5}{21}×\frac{3}{20}=$
$14×\frac{7}{8}=$
$\frac{3}{7}÷12=$
$\frac{7}{12}÷7=$
$\frac{12}{23}÷18=$
$\frac{5}{8}÷4=$
$\frac{4}{9}÷24=$
$\frac{2}{15}÷6=$
$\frac{4}{5}÷0.2=$
$\frac{1}{8}÷\frac{1}{4}=$
$1.6÷\frac{8}{9}=$
$\frac{5}{12}÷\frac{5}{3}=$
$\frac{8}{3}÷\frac{4}{7}=$
$\frac{19}{14}÷\frac{3}{7}=$
答案
1. $\frac{11}{14}$ $\frac{10}{33}$ $\frac{1}{28}$ $4$
$\frac{1}{16}$ $\frac{10}{21}$ $\frac{1}{12}$ $\frac{1}{2}$
$\frac{36}{49}$ $\frac{6}{25}$ $\frac{2}{69}$ $\frac{9}{5}$
$\frac{5}{12}$ $56$ $\frac{5}{32}$ $\frac{1}{4}$
$\frac{1}{2}$ $\frac{1}{28}$ $\frac{1}{54}$ $\frac{14}{3}$
$\frac{1}{2}$ $\frac{49}{4}$ $\frac{1}{45}$ $\frac{19}{6}$
$\frac{1}{16}$ $\frac{10}{21}$ $\frac{1}{12}$ $\frac{1}{2}$
$\frac{36}{49}$ $\frac{6}{25}$ $\frac{2}{69}$ $\frac{9}{5}$
$\frac{5}{12}$ $56$ $\frac{5}{32}$ $\frac{1}{4}$
$\frac{1}{2}$ $\frac{1}{28}$ $\frac{1}{54}$ $\frac{14}{3}$
$\frac{1}{2}$ $\frac{49}{4}$ $\frac{1}{45}$ $\frac{19}{6}$
2. 计算下面各题。
$\frac{3}{4}-\frac{2}{3}+\frac{1}{8}$
$\frac{7}{6}-(\frac{1}{6}+\frac{1}{5})$
$2-\frac{2}{9}-\frac{7}{9}$
$\frac{3}{4}-\frac{2}{3}+\frac{1}{8}$
$\frac{7}{6}-(\frac{1}{6}+\frac{1}{5})$
$2-\frac{2}{9}-\frac{7}{9}$
答案
2. $\frac{5}{24}$ $\frac{4}{5}$ $1$
3. 在○里填上“>”“<”或“=”。
$\frac{17}{16}×\frac{8}{9} ◯ \frac{8}{9}$
$\frac{9}{10}÷\frac{17}{21} ◯ \frac{9}{10}$
$\frac{7}{10}÷1 ◯ 1÷\frac{7}{10}$
$\frac{7}{8}÷\frac{2}{3} ◯ \frac{7}{8}$
$\frac{5}{9}÷\frac{10}{11} ◯ \frac{5}{9}$
$\frac{13}{14}×\frac{5}{9} ◯ \frac{13}{14}÷\frac{9}{5}$
$\frac{17}{16}×\frac{8}{9} ◯ \frac{8}{9}$
$\frac{9}{10}÷\frac{17}{21} ◯ \frac{9}{10}$
$\frac{7}{10}÷1 ◯ 1÷\frac{7}{10}$
$\frac{7}{8}÷\frac{2}{3} ◯ \frac{7}{8}$
$\frac{5}{9}÷\frac{10}{11} ◯ \frac{5}{9}$
$\frac{13}{14}×\frac{5}{9} ◯ \frac{13}{14}÷\frac{9}{5}$
答案
3. > > <
> > =
> > =
比较$\frac{333}{1666}$和$\frac{33}{166}$的大小。
答案
$\frac{333}{1666}>\frac{33}{166}$
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