Question

(-3/5)×2/3+(-3/5)×5/4​

Answer 1

Resposta:

$\frac{-3}{5}\cdot \frac{2}{3} +\frac{-3}{5} \cdot\frac{5}{4}$

$\frac{-3\cdot2}{5\cdot 3} +\frac{-3\cdot5}{5\cdot4}$

$\frac{-2}{5} +\frac{-3}{4}\\\\mmc = 5\cdot4 =20\\\\\frac{-2\cdot4-3\cdot5}{20}\\\\ \frac{-8-15}{20}\\\\\frac{-23}{20}$

bons estudos