1. 9 13/26 - 1 27/15 = ?
2. 1 11/18 - 9 24/16 = ?
3. 6 27/18 - 4 16/11 = ?
4. 4 18/13 - 9 11/25 = ?
5. 6 19/10 - 3 27/14 = ?
6. 8 10/23 - 5 18/22 = ?
7. 8 20/13 - 3 25/17 = ?
8. 7 23/13 - 6 26/26 = ?
9. 2 26/29 - 8 12/21 = ?
10. 3 14/18 - 8 15/26 = ?
11. 7 16/21 - 5 29/10 = ?
12. 5 27/16 - 3 26/10 = ?
13. 6 12/21 - 9 13/12 = ?
14. 6 26/23 - 1 17/20 = ?
15. 5 27/15 - 6 15/27 = ?
16. 7 28/26 - 3 22/18 = ?
17. 9 23/28 - 3 26/14 = ?
18. 3 22/15 - 9 25/23 = ?
19. 7 11/27 - 1 22/20 = ?
20. 4 22/18 - 1 12/24 = ?
21. 7 11/24 - 3 19/18 = ?
22. 5 18/19 - 7 20/17 = ?
23. 4 15/15 - 6 18/24 = ?
24. 3 19/18 - 6 20/13 = ?