Which of the following fractions R has a decimal equivalent that is a terminating decimal? Choose the correct choice from the following answers: A) 10/189 B) 15/196 C) 16/225 D) 25/144 E) 39/128
The fraction R will terminate if and only if the denominator has prime divisors only 2 and 5 or both.   A. 10/189 = 10/(3*3*3*7) Non-term.   B. 15/196 = 15/(2*2*7*7) Non-term.   C. 16/225 = 16/(5*5*3*3) Non-term.   D. 25/144 = 25/(2*2*2*7) Non-term.   E. 39/128 = 39/(2^7) Terminatingbecause only 2 in denominator.
<result>E</result>
Which of the following fractions R has a decimal equivalent that is a terminating decimal?