Question

simplifique o resultado: 2/5 + 3/2 + 1/8 + 3/4 =

Answer 1

Calculamos o MMC dos quatro denominadores:

$5,2,8,4|2\\5,1,4,2|2\\5,1,2,1|2\\5,1,1,1|5\\1,1,1,1$

$MMC(5,2,8,4)=2^3.5=8.5=40$

Agora vamos resolver a soma de frações descrita:

$\frac{2}{5}+\frac{3}{2}+\frac{1}{8}+ \frac{3}{4}=$ $\frac{16}{40}+\frac{60}{40}+\frac{5}{40}+\frac{30}{40}=$ $\frac{111}{40}$