|
| 1. | 8/? | = | 2/8 | 2. | ?/8 | = | 15/40 | ||
| 3. | 15/20 | = | ?/4 | 4. | 32/40 | = | ?/10 | ||
| 5. | 16/? | = | 4/6 | 6. | 6/? | = | 3/5 | ||
| 7. | ?/50 | = | 6/10 | 8. | ?/6 | = | 10/12 | ||
| 9. | 1/9 | = | ?/27 | 10. | 8/? | = | 16/18 | ||
| 11. | 16/24 | = | ?/6 | 12. | 12/? | = | 2/9 | ||
| 13. | ?/6 | = | 4/24 | 14. | 8/? | = | 40/45 | ||
| 15. | ?/10 | = | 54/60 | 16. | ?/3 | = | 4/12 | ||
| 17. | ?/20 | = | 2/5 | 18. | 8/20 | = | 4/? | ||
| 19. | 5/6 | = | 10/? | 20. | ?/8 | = | 12/16 |