Question

The simplest form of any rational number can be represented as a terminating decimal if the denominator has factors

• A. 2 or 5 or both
• B. 2 or 3 or both
• C. 3 or 5 or both
• D. 2,3 or 5

Answer 1

The correct option is A

2 or 5 or both

If $\frac{p}{q}$ is a rational number in simplest form, then the denominator, $q$ must have prime factors in the form of $2^n{5}^m$ for it to have terminating decimal expansion.