Free Printable Násobení a dělení racionálních čísel

1.

$\frac{2}{5}\ .\ \frac{1}{7}=$

a)

$\frac{2}{35}$

b)

$\frac{2}{12}$

c)

$\frac{1}{2}$

d)

$1$

2.

$-\frac{2}{7}\ .\ \frac{4}{9}=$

a)

$\frac{6}{16}$

b)

$-\frac{8}{63}$

c)

$-\frac{8}{45}$

d)

$\frac{8}{63}$

3.

$-\frac{5}{3}\ .\ \left(-\frac{7}{4}\right)=$

a)

$-\frac{35}{12}$

b)

$\frac{12}{7}$

c)

$-\frac{2}{3}$

d)

$\frac{35}{12}$

4.

$-\frac{4}{25}\ .\ \frac{5}{2}=$

a)

$\frac{2}{5}$

b)

$-\frac{25}{4}$

c)

$-\frac{2}{5}$

d)

$\frac{1}{5}$

5.

$-\frac{20}{12}\ .\ \left(-\frac{16}{10}\right)=$

a)

$\frac{2}{3}$

b)

$-\frac{4}{3}$

c)

$\frac{8}{3}$

d)

$-\frac{3}{5}$

6.

$\frac{3}{5}\div\left(-\frac{2}{7}\right)=$

a)

$\frac{21}{10}$

b)

$-\frac{21}{10}$

c)

$\frac{6}{35}$

d)

$-\frac{7}{5}$

7.

$-\frac{6}{7}\div\frac{2}{3}=$

a)

$-\frac{9}{7}$

b)

$\frac{6}{7}$

c)

$-\frac{4}{3}$

d)

$\frac{9}{7}$

8.

$\frac{15}{56}\div\frac{30}{8}=$

a)

$-\frac{7}{10}$

b)

$\frac{1}{16}$

c)

$\frac{1}{14}$

d)

$\frac{3}{14}$

9.

$-\frac{1}{2}\div\left(-\frac{5}{18}\right)=$

a)

$-\frac{9}{5}$

b)

$\frac{5}{9}$

c)

$-\frac{2}{5}$

d)

$\frac{9}{5}$

10.

$-\frac{35}{44}\div\frac{49}{55}=$

a)

$\frac{25}{28}$

b)

$-\frac{25}{28}$

c)

$\frac{10}{11}$

d)

$-\frac{20}{21}$

Násobení a dělení racionálních čísel - zlomky

Total questions: 10

Worksheet time: 9mins

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