Answer:
See below
Explanation:
If the denominator of a fraction has only factors of 2 and 5, the decimal expression terminates.
If the denominator contains a factor other than 2 or 5, then the decimal expression repeats.
56/72 is a repeating decimal
72 contains a factor of 9.
12/30 is a terminating decimal.
30 contains factors of 2 and 5
15/40 is a terminating decimal.
40 contains factors of 2 and 5
12/37 is a repeating decimal.
37 does not contain factors of 2 or 5.