To solve ( \frac{1}{2} + \frac{1}{4} ):

Step 1: Find a common denominator

The denominators are 2 and 4. The least common denominator is 4.

Step 2: Convert ( \frac{1}{2} ) to have denominator 4

( \frac{1}{2} = \frac{1 \times 2}{2 \times 2} = \frac{2}{4} )

Step 3: Add the fractions

( \frac{2}{4} + \frac{1}{4} = \frac{2 + 1}{4} = \frac{3}{4} )

Answer: ( \boxed{\frac{3}{4}} )

作者声明:本文包含人工智能生成内容。