bjr
tu as toutes les explications pour les calculs..
donc on applique :
A = 1/2 + 5/2 x 3/4
A = 1/2 + 15/8
A = 4/8 + 15/8
A = 19/8
B = 5/7 - 4/3 : 14/5
B = 5/7 - 4/3 x 5/14
B = 5/7 - 20/42
B = 30/42 - 20/42
B = 15/42
B = 5/14
C= .. coupé sur la droite
D = (1+2/3) / 5
D = 5/3 x 1/5
D = 1/3
E = 4 / (1/3 + 1)
E = 4 / (4/3)
E = 4 x 3/4 = 3
F = (1-4/3) / (1+4/3)
F = (-1/3) / 7/3
F = -1/3 x 3/7 = -1/7
allez je te laisse le G pour la route :)
