1. The problem is to express the fraction $\frac{1}{2}$ as a decimal. 2. To convert a fraction to a decimal, divide the numerator by the denominator. 3. Here, divide 1 by 2: $$\frac{1}{2} = 1 \div 2$$ 4. Performing the division, 1 divided by 2 equals 0.5. 5. Therefore, the decimal representation of $\frac{1}{2}$ is 0.5.