you need to get a common denominator which would be 20
5 10/20 + 8 8/20 + 8 5/ 20 =
21 23/20
21 + 1 3/20
22 3/20
First, get a LCD (Lowest Common Denominator).
5 1/2 * 10 = 50 10/20
8 2/5 * 4 = 32 8/20
8 1/4 * 5 = 40 5/20
Secondly, we add them all together.
50 10/20
32 8/20
40 5/20
Answer:
123 3/20
