alleryA fraction in lowest terms is a terminating decimal only if its denominator has just which prime factors?
A3 and 5
B2 and 3
C2 and 5
D3 and 7
Answer & Solution
Correct answer: C. 2 and 5
Ten equals 2 times 5, so only denominators built from 2 and 5 divide a power of ten.
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