Réponse :
bonjour
4/3 + 5/6 = 8/6 + 5/6 = 13/6
2/5 + 7/15 = 6/15 + 7/15 = 13/15
25/12 - 5/3 = 25/12 - 20/12 = 5 /12
7/18 - 1/3 = 7/18 - 6 /18 = 1 /18
11/10 + 9/40 = 44/40 + 9 /40 = 53 /40
11/6 - 11 /36 = 66/36 - 11 /36 = 55 /36
8/25 + 13 /50 = 16/50 + 13/50 = 29/50
27/14 - 12/7 = 27/14 - 24/14 = 3 /14
Explications étape par étape :
