Exercice 2 :
A) 224 / 100 = 31 / 25
B) 11 / 10
C) 13 / 4
D) 26 / 21
Exercice 3 :
A) 14 / 20 = 7 / 10
B) 1 / 18
C) 14 / 9
D) 10 / 63
Exercice 4 :
A) 20 / 7
B) 7/3
C) 3/10
D) 3/7
Exercice 5 :
A) 6 / 10 = 3 / 5
B) 19/4
C) 5 / 10 = 1/2
D) 23/8
Exercice 6 :
À) 15 / 7 + 21 / 5 = 22 / 35
B) 12 / 2 + 12 / 3 = 60 / 3 = 20
