算数演習/小学校6年生

初等数学演習＞算数演習　小学校6年生

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分数のかけ算・わり算

次の計算をしてみましょう。

(1)

$\frac{1}{5}\times 3$

(2)

$\frac{2}{3}\times 4$

(3)

$\frac{2}{7}\times 4$

(4)

$\frac{2}{9}\times 5$

(5)

$\frac{5}{6}\times 7$

(6)

$\frac{3}{8}\times 4$

(7)

$\frac{4}{9}\times 3$

(8)

$\frac{7}{6}\times 3$

(9)

$\frac{3}{8}\times 12$

(10)

$\frac{5}{7}\times 21$

(11)

$\frac{4}{5}÷3$

(12)

$\frac{2}{5}÷5$

(13)

$\frac{3}{4}÷8$

(14)

$\frac{7}{8}÷4$

(15)

$\frac{5}{6}÷2$

(16)

$\frac{4}{5}÷2$

(17)

$\frac{5}{6}÷10$

(18)

$\frac{3}{2}÷6$

(19)

$\frac{4}{3}÷8$

(20)

$\frac{9}{4}÷6$

分数のかけ算

次の計算をしましょう。

(1)

$\frac{7}{8}\times \frac{3}{4}$

(2)

$\frac{4}{5}\times \frac{2}{7}$

(3)

$\frac{5}{6}\times \frac{5}{3}$

(4)

$\frac{4}{9}\times \frac{4}{3}$

(5)

$\frac{7}{4}\times \frac{3}{5}$

(6)

$\frac{7}{9}\times \frac{5}{8}$

(7)

$\frac{3}{5}\times \frac{1}{7}$

(8)

$\frac{5}{8}\times \frac{5}{6}$

(9)

$\frac{3}{7}\times \frac{2}{5}$

(10)

$\frac{6}{7}\times \frac{1}{4}$

(11)

$\frac{3}{14}\times \frac{7}{5}$

(12)

$\frac{3}{8}\times \frac{7}{12}$

(13)

$\frac{8}{9}\times \frac{3}{7}$

(14)

$\frac{3}{2}\times \frac{4}{9}$

(15)

$\frac{5}{12}\times \frac{9}{10}$

(16)

$\frac{5}{9}\times \frac{3}{5}$

(17)

$5\times \frac{3}{8}$

(18)

$3\times \frac{2}{7}$

(19)

$12\times \frac{10}{9}$

(20)

$10\times \frac{4}{5}$

分数のわり算

次の計算をしましょう。

(1)

$\frac{5}{8}÷\frac{6}{7}$

(2)

$\frac{3}{5}÷\frac{5}{6}$

(3)

$\frac{8}{9}÷\frac{5}{4}$

(4)

$\frac{1}{7}÷\frac{6}{5}$

(5)

$\frac{5}{4}÷\frac{8}{7}$

(6)

$\frac{3}{2}÷\frac{1}{3}$

(7)

$\frac{2}{9}÷\frac{3}{8}$

(8)

$\frac{6}{7}÷\frac{3}{5}$

(9)

$\frac{9}{10}÷\frac{7}{5}$

(10)

$\frac{2}{7}÷\frac{4}{9}$

(11)

$\frac{12}{5}÷\frac{8}{15}$

(12)

$\frac{3}{8}÷\frac{9}{14}$

(13)

$\frac{2}{3}÷\frac{8}{9}$

(14)

$6÷\frac{5}{7}$

(15)

$15÷\frac{10}{7}$

(16)

$4÷\frac{2}{9}$

(17)

$\frac{2}{3}\times \frac{1}{6}÷\frac{7}{9}$

(18)

$\frac{3}{4}÷\frac{6}{5}\times \frac{1}{5}$

(19)

$\frac{16}{7}÷9\times \frac{3}{8}$

(20)

$\frac{2}{9}÷\frac{4}{7}÷\frac{5}{6}$

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答え