Question

Calcule:
1/2 - (1/4 - 1/8)

Answer 1

Resposta:

Explicação passo-a-passo:

$\displaystyle \frac{1}{2}-(\frac{1}{4} -\frac{1}{8}) \\\\mmc(2,4,8)\\2,4,8|2\\1,2,4|2\\1,1,2|2\\1,1,1\\mmc(2,4,8)=2.2.2=8\\\\ \frac{1}{2}-(\frac{1}{4} -\frac{1}{8})=\frac{4-(2-1)}{8} =\frac{4-1}{8} =\frac{3}{8}$