Question

Resolva as expressões abaixo 2/5+1/4:2/3

Answer 1

Resposta:

$\frac{\frac{2}{5}+\frac{1}{4}}{\frac{2}{3}}=\frac{39}{40}$

Explicação passo a passo:

$\frac{\frac{2}{5}+\frac{1}{4}}{\frac{2}{3}}=\frac{\left(\frac{2}{5}+\frac{1}{4}\right)\cdot \:3}{2}=\frac{\frac{39}{20}}{2}=\frac{39}{20\cdot \:2}=\frac{39}{40}$