Question

Efectuați calculele

​

Answer 1

Răspuns:

Explicatie pas cu pas:

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

$\frac{1}{2} + \frac{1}{8} = \frac{4}{8} + \frac{1}{8} = \frac{5}{8}$

Answer 2

Răspuns:

1/2+(2/8-1/8)=4/8+1/8=5/8

Explicație pas cu pas: