Question

Which fraction below represents a repeating decimal?

A.) 1/4
B.) 6/4
C.) 19/2
D.) 22/12

Answer 1

d) 22/12
You can just divide it out for each one and fine the answer, but I have a trick. If when the fraction is simplified there is still a 3,7,11 etc on the denominator, then that fraction is repeating.
22/12 simplifies to 11/6, and 6 is a multiple of 3, so the decimal will be repeating.