Question

-0,6 + (-1/2) + 0,7
-3,8 + ( -5,4)
-0.75 + ( -4/5) + 0,9

Answer 1

$- 0.6 + ( - \frac{1}{2} ) + 0.7 = - 0.6 - \frac{1}{2} + 0.7 = - 0.6 - 0.5 + 0.7 = - 0.4или - \frac{2}{5}$

$- 3.8 + ( - 5.4) = - 3.8 - 5.4 = - 9.2$

$- 0.75 + ( - \frac{4}{5} ) + 0.9 = - 0.75 - \frac{4}{5} + 0.9 = - 0.75 - 0.8 + 0.9 = - 0.65или - \frac{13}{20}$