Question

x sobre 3 + y sobre 2

Answer 1

 $\frac{x}{3} + \frac{y}{2}$        ( mmc de 3 e 2 = 6 ) 

6/3 = 2 
2.x = 2x

6/2 = 3
3.y = 3y 

$\frac{2x}{6} + \frac{3y}{6} = \boxed{\frac{2x+3y}{6} }$       ok