Bonjour
10)
- 2/-7 = 14/35
- 18/72 = - 1/4 = 48/- 192
2/3 = 23/39
81/18 = 27/6
- 15/18 = - 5/6 = - 52,5/63
- 16,5/11 = - 3/2
11)
-5/3 = 20/- 12 = - 55/33 = 65/- 39 = 45/- 27
36/48 = 9/12 = - 45/- 60 = 63/84 = 108/144
- 27/21 = - 9/7 = - 207/201 = - 108/84
