Question

resolva as multiplicações e divisões das frações

Answer 1

e) $\frac{2}{3} . \frac{4}{7} = \frac{8}{21}$
f) $\frac{2}{4}.\frac{1}{3} = \frac{2}{12} = \frac{1}{6}$
g) $\frac{5}{10}.\frac{1}{2} = \frac{5}{20} = \frac{1}{4}$
h) $\frac{3}{\frac{1}{2}} = \frac{3}{1}.\frac{2}{1} = \frac{6}{1} = 6$
i) $\frac{5}{\frac{3}{2}} = \frac{5}{1}.\frac{2}{3} = \frac{10}{3}$
j) $\frac{10}{\frac{1}{2}} = \frac{10}{1}.\frac{2}{1} = \frac{20}{1} = 20$

Answer 2

Resposta:

$e)\frac{8}{21}$

$f)\frac{1}{6}$

$g)\frac{1}{4}$

h) 6

$i)\frac{10}{3}$

j) 20

Explicação passo-a-passo:

$e)\frac{2}{3} \times\frac{4}{7} =\boxed{\frac{8}{21} }$

$f)\frac{2}{4} \times\frac{1}{3} =\frac{2^{\div2}}{12} =\boxed{\frac{1}{6} }$

$g)\frac{5}{10}\times \frac{1}{2} =\frac{5^{\div5}}{20} =\boxed{\frac{1}{4} }$

$h)3\div\frac{1}{2} =\frac{3}{1} \times\frac{2}{1} =\frac{6}{1} =\boxed{6 }$

$i)5\div\frac{3}{2} =\frac{5}{1} \times\frac{2}{3} =\boxed{\frac{10}{3} }$

$j)10\div\frac{1}{2} =\frac{10}{1} \times\frac{2}{1} =\frac{20}{1} =\boxed{20}$