A: 6/8, 9/12, 12/16
b: 6/14, 9/21, 12/28
c: 6/9, 2/3, 4/6
d: 1/4, 2/8, 2/12
In order to find equivalent fractions for a fraction is multiply or divide the numerator and denominator by the same number.
For example, 3/4=6/8 because 3x2=6 and 4x2=8, 6/8.
Hope this helps!
8-3x=5*2
8-3x=10
-3x=10-8
-3x=2
x=-2/3
A 31 inches is the answer because it can't be higher than 39