Answer:
Yes you need a common denominator because, We need the pieces of each fraction to be the same size to combine them together. ... These two fractions have the same denominator, so the equal parts that the whole has been split into are the same size.
Step-by-step explanation:
Least to Greatest: 38%, .4, .5, 5/8
The answer is 3 I dont get how but thats what the mathcounts site says.
49/36
1/6×7=7/6
(7/6)^2 =49/36