Question

a)2/7 : 5/7 : 6/7=
b)6/7 : 3/7 x 5/9=
(com explicação)

Answer 1

$\frac{ \frac{2}{7} }{ \frac{ \frac{5}{7} }{ \frac{6}{7} } } = \frac{ \frac{2.7}{7.5} }{ \frac{6}{7} } = \frac{ \frac{2}{5} }{ \frac{6}{7} } = \frac{2}{5} . \frac{7}{6} = \frac{14}{30} = \frac{7}{15} \\ \\ \\ \\ \frac{ \frac{6}{7} }{ \frac{3}{7} } . \frac{5}{9} = \frac{6}{7} . \frac{7}{3} . \frac{5}{9}= \frac{30}{27} = \frac{10}{9}$

Espero ter ajudado.