What is 0.003 as a fraction?

To convert 0.003 into a fraction, follow these steps:

1. Write down the number as a fraction with 1 as the denominator: \( \frac{0.003}{1} \).
2. Multiply both the numerator and the denominator by 1000 to eliminate the decimal point: \( \frac{0.003 \times 1000}{1 \times 1000} = \frac{3}{1000} \).
3. Simplify the fraction if possible. In this case, \( \frac{3}{1000} \) is already in its simplest form.

Therefore, 0.003 as a fraction is \( \frac{3}{1000} \).