help math fractions

Find the common denominator: 4

Set both denominators to that: 2/4 +1/4

Now, like regular addition, 2+1=3

3/4

$\dfrac{1}{2}+\dfrac{1}{4}\\ =\dfrac{2}{4} + \dfrac{1}{4}\\ = \dfrac{3}{4}$

Same as Mellie's answer.