1) (10 - 9 3/4 ) = 1/4 2) 1/4 + 3 1/6 = 6/24 + 3 4/24 = 3 10/24 3) (4 1/4 - 1 7/8 ) = 4 6/24 - 1 21/24 = 3 30/24 - 1 21/24 = 2 9/24 4) 3 10/24 - 2 9/24 = 1 1/24