Réponse:
1: 2+6/5 =8/5
2: 6/6 soit 1
3: 6/9
4: 11/11 soit 1
5: 3/9
6: 7/13
7: 48/12
8: 34/17
9: 14/7
10: 29/5
11: 6/5
12: 26/10
