Réponse:
bonjour
a) 1/3= 4/12 et 5/12 = 5/12 donc 5/12 > 1/3
b) 7/4 = 14/8 et 15/8 = 15/8 donc 7/4 < 15/8
Bonsoir;
5/12 et 1/3
1/3 = 1*4/12 = 4/12
5/12 =5/12
5/12 > 1/3
7/4 = 14/8
15/8 = 15/8
7/4 < 15/8
