Question

$( \frac{1}{2} + \frac{1}{3}) :0,(3)-2,5$

Answer 1

3+2/6:3/9-2,5=5/6x9/3-2,5=5/6x3-2,5=15/6-2,5=2,5-2,5=0

Answer 2

Rezolvam pe rand. 1/2+1/3=3/6+2/6=5/6=$\frac{5}{6}$
0,(3)=3/9=1/3=2/6=$\frac{2}{6}$. Avem :$\frac{5}{6} : \frac{2}{6} -2,5= \frac{5}{2}-2,5=2,5-2,5=0.$