Question

Which of the following numbers can be expressed as decimals that terminate?
5/2 , 4/5 , 2/7 , 4/3

A: 5/2 and 2/7
B: 4/5 and 4/3
C: 5/2 and 4/5
D: 2/7 and 4/2.

Answer 1

I just plugged each of those into a calculator. The ones that end and don't go on forever are terminating so the answer is C:4/5 and 5/2 

Answer 2

5/2 = 2.5   It terminates.

4/5 = 0.8   It terminates.

2/7 = 0.28571428571428....  It does not terminate.

4/3 = 1.3333....    It does not terminate.

So:    5/2 and 4/5 terminates  option C.