Bonsoir :)
Réponse en explications étape par étape :
- Question : Calculer :
A = 3/4 + 1/8
A = 6/8 + 1/8
A = 7/8
B = 1/2 + 3/10
B = 5/10 + 3/10
B = 8/10
B = (2 * 4/2 * 5)
B = 4/5
C = 7/6 + 2/3
C = 7/6 + 4/6
C = 11/6
D = 10/4 + 7/2
D = (2 * 5/2 * 2) + 7/2
D = 5/2 + 7/2
D = 12/2
D = 6
E = 3/2 + 1/4 + 3/8
E = 12/8 + 2/8 + 3/8
E = 17/8
Voilà