1) (7/15) / (14/25) = (7/15) (25/14) = 1/32) (8/13) / 4 = (8/13) (1/4) = 2/133) 9 / (27/28) = 9 * (28/27) = 28/34) (2 2/9) / (1 7/9) = (20/9) / (16/9) = 20/16 = 5/4
1) (7/15) / (14/25) = (7/15) (25/14) = 1/3
2) (8/13) / 4 = (8/13) (1/4) = 2/13
3) 9 / (27/28) = 9 * (28/27) = 28/3
4) (2 2/9) / (1 7/9) = (20/9) / (16/9) = 20/16 = 5/4