55/100 = 11/20
12= 2x2x3 55=5x11 There are no common prime factors so it can not be reduced.
There are no common factors of 38 and 55 except 1, so the answer is no it can't be reduced.
55/1 is 55 anything divided by 1 is itself
3/5
1/5
8055/78 cannot be reduced.
55 + 89 = 144
55 out of 89 is 61.8%
55 * 89 = 4,895
-42/55
Yes to 11/12