1. Convert the mixed number to an improper fraction:
\(2\frac{1}{2} = \frac{5}{2}\) .
2. Multiply:
\(\frac{1}{2} \times \frac{5}{2} = \frac{1 \times 5}{2 \times 2} = \frac{5}{4}\) .
3. The answer is:
\(\frac{5}{4}\) .
or in mixed number: 1\frac{1}{4}