Réponse :
Bonjour
Explications étape par étape :
A = 13 + 55 + 5 = 13 + 60 = 73/20
140 - 120 20
B = 2 + 48/12/2 = 2 + 4/2 = 2 + 2 =4
C = 12 + 9 = 21/7 = 3
4 + 3
D = 2 X 33+7 = 2 +40/20 = 2 + 2 = 4
27-7
E = 3 + 5 + 15 = 3 + 20 = 23/5
10/2 5
F = 15/3 : 10/5
F = 5 / 2
