5 : 1 1/4 + 7 : 1 1/3 = 9,25
1. 5 : 1 1/4 = 5 : 5/4 = 5 * 4/5 = 4
2. 7 : 1 1/3 = 7 : 4/3 = 7 * 3/4 = 21/4 = 5 1/4
3. 4 + 5 1/4 = 9 1/4 = 9,25
9 1/3 : 7/8 * 7/16 : 14/27 = 9
1. 9 1/3 : 7/8 = 28/3 * 8/7 = 32/3 = 10 2/3
2. 10 2/3 * 7/16 = 32/3 * 7/16 = 14/3 = 4 2/3
3. 4 2/3 : 14/27 = 14/3 * 27/14 = 9