(15 1/2 - 2 3/8) - (5 5/6 + 6 3/4) + (10 2/3 - 5 5/8)

(15 4/8 - 2 3/8) - (5 10/12 + 6 9/12) + (10 16/24 - 5 15/24) = 13 1/8 - 11 7/12 + 4 1/24 = 13 3/24 - 11 14/24 + 4 1/24 = 12 27/24 - 11 14/24 + 4 1/24 = 1 13/24 + 4 1/24 = 5 14/24 = 5 7/12