5 1/8 + 5/6 + 5/12 =
We need to put these into a common denominator, 24 is the nearest:
1/8(3/3) = 3/24
5/6(4/4) = 20/24
5/12(2/2) = 10/24
5 3/24 + 20/24 + 10/24 = 5 33/24 = 6 9/24
reduce the fraction by dividing numerator and denominator by 3:
6 3/8