Question

calcule
a) 0,3 + (-1/2)

b) 0,7 × (-1/2)​

Answer 1

Explicação passo-a-passo:

a)

$0.3 + ( - \frac{1}{2} ) = 0.3 - 0.5 = - 0.2$

b)

$0.7 \times ( - \frac{1}{2} )$

$\frac{7}{10} \times ( - \frac{1}{2} )$

$- \frac{7}{20}$