4.5 into a fraction

Convert 4.5 to a fraction:
1. 4.5 can be expressed as 4 \frac{1}{2} .
2. Convert the mixed number to an improper fraction: 4 \frac{1}{2} = \frac{4 \cdot 2 + 1}{2} = \frac{9}{2} .

Answer: \frac{9}{2}