Question

A +B
---------
ab

Para a= 1/3 e B = 2/5 é
A 1
B 3/5
C 2
D 11/2

Answer 1

$\frac{a+b}{ab}=\frac{\frac{1}{3}+\frac{2}{5}}{\frac{1}{3}*\frac{2}{5}}=\frac{\frac{5+6}{15}}{\frac{2}{15}}=\frac{\frac{11}{15}}{\frac{2}{15}}=\frac{11}{15}*\frac{15}{2}=\frac{11}{2}$