Question

efetue as multiplicações 3/7×2/3= 5/8×8/7= 7/4×4/7= 2/5×3/4=​

Answer 1

Resposta:

Olá!

Explicação passo-a-passo:

$\frac{3}{7}.\frac{2}{3}=\frac{3.2}{7.3}=\frac{6}{21}=\frac{2}{7}$

$\frac{5}{8}.\frac{8}{7}=\frac{5.8}{8.7}=\frac{40}{56}=\frac{5}{7}$

$\frac{7}{4}.\frac{4}{7}=\frac{7.4}{4.7}=\frac{28}{28}=1$

$\frac{2}{5}.\frac{3}{4}=\frac{2.3}{5.4}=\frac{6}{20}=\frac{3}{10}$

Bons Estudos!