a) (3/4 - 1/6) = (9/12 - 2/12) = 7/12
b) (11/22 + 9/10) = (5/10 + 18/10) = 23/10 = 2 3/10
c) (5/6 + 3/8 - 1/3) = (20/24 + 9/24 - 8/24) = 21/24 = 7/8
a) (3/4 - 1/6) = (9/12 - 2/12) = 7/12
b) (11/22 + 9/10) = (5/10 + 18/10) = 23/10 = 2 3/10
c) (5/6 + 3/8 - 1/3) = (20/24 + 9/24 - 8/24) = 21/24 = 7/8