Question

To express a terminating decimal as a common fraction, we express the decimal as a common fraction with a power of $10$ in the ............

• A. numerator
• B. whole number
• C. denominator
• D. ambiguous

Answer 1

Answer: (C)

denominator

When the prime factorization of the denominator of a fraction has only factors of $2$ and factors of $5$, then the number is a terminating decimal. If there are prime factors in the denominator other than $2$ or $5$, then the decimals repeat.
Therefore, $C$ is the correct answer.