Question

Which is the fractional portion of the solution to 5 3/8 + 2 3/12

Answer 1

( 5 + 2 ) + ( 3 / 8 + 3 / 12 ) = 7 + ( 9 / 24 + 6 / 24 ) = 7 + 15 / 24 = 7 + 5 / 8 = 7 5/8;
The fractional portion is 5 / 8 = 0.4

Answer 2

First we need to find the common denominator for 8 and 12.

8 = 8, 16, 24

12 = 12, 24

So we have 24 as our common denominator.

5 3/8 =   5  9/24

2 3/12 = 3  6/24   now we can add.

              8   15/24

So that would be your answer 8 15/24

Hope this helps you. :-)