Pouvez vous m'aider exercices (22,23,24,25,26) merci.

Bonjour,

22) - 10/12 = - 5/6 = - 25/30 = - 45/54 = - 15/18

23)
a) - 28/35 = - 4/5
b) 40/48 = 5/6
c) - 63/- 49 = 9/7

24) 
a) 21/6 = 7/2
b) - 14/12 = - 7/6
c) - 48/- 18 = 8/3
d) 15/45 = 1/3
e) - 16/24 = - 2/3

25)
5/7 = 30/42 = 35/49 = 40/56