The correct answer is: $\frac{5}{8}$
Explanation
To convert a decimal with three decimal places to a fraction, write it over 1000 and simplify.
Steps:
- Write as a fraction: $$0.625=\frac{625}{1000}$$
- Divide numerator and denominator by their greatest common divisor (125): $$\frac{625}{1000}=\frac{625\div125}{1000\div125}=\frac{5}{8}$$
- Final simplified fraction: $$\frac{5}{8}$$
Therefore, $0.625=\frac{5}{8}$.