1) 2 1/2 1 1/8 = (2 + 1/2) (1 + 1/8) = 2 1 + 2 1/8 + 1/2 1 + 1/2 1/8 = 2 + 1/4 + 1/2 + 1/16 = 2 5/16
2) 1 3/5 7 1/2 = (1 + 3/5) (7 + 1/2) = 1 7 + 1 1/2 + 3/5 7 + 3/5 1/2 = 7 + 1/2 + 21/5 + 3/10 = 7 1/2 + 4 1/10 = 11 6/10 = 12
1) 2 1/2 1 1/8 = (2 + 1/2) (1 + 1/8) = 2 1 + 2 1/8 + 1/2 1 + 1/2 1/8 = 2 + 1/4 + 1/2 + 1/16 = 2 5/16
2) 1 3/5 7 1/2 = (1 + 3/5) (7 + 1/2) = 1 7 + 1 1/2 + 3/5 7 + 3/5 1/2 = 7 + 1/2 + 21/5 + 3/10 = 7 1/2 + 4 1/10 = 11 6/10 = 12