Question
In a fraction with the denominator of 15, which value could the numerator be to produce a repeating decimal?
a) 15
b) 9
c) 11
d) 12
a) 15
b) 9
c) 11
d) 12
Answers
Ms. Sue
Divide the numerator by the denominator.
I'll be glad to check your answer.
I'll be glad to check your answer.
oobleck
all fractions whose denominator (in lowest terms) contains only powers of 2 and 5 terminate.
Any other factor in the bottom produces a repeating decimal.
So, your numerator can be anything that does not have a factor of 3 to cancel the 3 in 15.
Any other factor in the bottom produces a repeating decimal.
So, your numerator can be anything that does not have a factor of 3 to cancel the 3 in 15.
jim
15