Question

4. Calcule
a) 1/2-(1/4-1/8)
b) (1/2-1/4)-1/8

Answer 1

Explicação passo-a-passo:

A)

$\frac{1}{2} - ( \frac{1}{4} - \frac{1}{8}) = \\ \frac{1}{2} - \frac{1}{8} = \\ \frac{3}{8}$

B)

$( \frac{1}{2} - \frac{1}{4} ) - \frac{1}{8} = \\ \frac{1}{4} - \frac{1}{8} = \\ \frac{1}{8}$