8 1/2 + 4 1/3 + 2 1/2 + 2 2/3

Answer 1

8 1/2 + 4 1/3 + 2 1/2 + 2 2/3

The common denominator is 6.

8 1/2 = 8 3/6
4 1/3 = 4 2/6
2 1/2 = 2 3/6
2 2/3 = 2 4/6

Added together they are

16 12/6 = 18