Ushtrimi 6

Kryej veprimet me thyesa:

a $\frac{1}{2x} + \frac{3}{x}$

b $\frac{2}{3y} + \frac{1}{y}$

c $\frac{3}{4x} + \frac{1}{2x}$

d $\frac{3}{xy} + \frac{2}{y}$