Question

me ajudem aqui pfv...​

Answer 1

Resposta:

$- \frac{2}{3}$

$( - \frac{1}{2} + \frac{3}{4} ) \div ( - 1 - \frac{1}{2} \times ( - \frac{3}{2} + \frac{1}{4} ))$

$\frac{1}{4} \div ( - 1 - \frac{1}{2} \times ( - \frac{5}{4} ))$

$\frac{1}{4} \div ( - 1 + \frac{5}{8} )$

$\frac{1}{4} \div ( - \frac{3}{8} )$

$- \frac{1}{4} \times \frac{8}{3}$

$- \frac{2}{3}$