Answer
$\frac{3}{4}$
Work Step by Step
Start with given expression: $\frac{1}{2}+\frac{1}{4}$
Convert $\frac{1}{2}$ to fourths: $\frac{1}{2}\times\frac{2}{2}=\frac{2}{4}$
Add the terms with like denominators: $\frac{2}{4}+\frac{1}{4}=\frac{3}{4}$