Question

(3/4. 1/2 + 2/5)+1/4
Alguém sabe?​

Answer 1

Resposta:

$(\frac{3}{4}*\frac{1}{2} +\frac{2}{5} )+\frac{1}{4} \\(\frac{3}{8} +\frac{2}{5} )+\frac{1}{4}\\(\frac{15+16}{40})+\frac{1}{4}\\\frac{31}{40}+\frac{1}{4}\\\frac{31+10}{40}=\frac{41}{40}$