Question

Quero saber o resultado desse cálculo...

Answer 1

- 4/5 - 1/2 . 1/2 = 0.5, 4/5 = 0.8, logo :
-4/5 -1/2 =
-0.8 -0.5 =
-1.3 =
-13/10

Answer 2

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

$- \frac{4}{5}$ $- \frac{1}{2}$

$- \frac{13}{10}$