Question

Quando e esse resultado ?

Answer 1

$\large\sf{} - \dfrac{2}{5} - \dfrac{3}{2} \\ \\ \large\sf{} - \left( \dfrac{2}{5} + \dfrac{3}{2} \right) \\ \\ \large\sf{} - \left( \frac{2 \times 2}{5 \times 2} + \frac{3 \times 5}{2 \times 5} \right) \\ \\ \large\sf{} - \left( \dfrac{4}{10} + \dfrac{15}{10} \right) \\ \\ \large\sf{} - \dfrac{4 + 15}{10} \\ \\ \large\sf{}{\large\boxed{\boxed{  { \large \sf - \dfrac{19}{10} }}}}$

${\large\boxed{\boxed{  { \large \sf Bons~Estudos }}}}$