Réponse :
Explications étape par étape
Bonjour
A = (10/7 - 3/7) x 4/5
A = 7/7 x 4/5
A = 1 x 4/5
A = 4/5
B = (6/5 + 2/5) x 3/7
B = 8/5 x 3/7
B = (8 x 3)/(5 x 7)
B = 24/35
C = 4/5 x (2/3 + 8/3)
C = 4/5 x 10/3
C = 10/5 x 4/3
C = (5 x 2)/5 x 4/3
C = 2 x 4/3
C = 8/3
D = 10 x (7/11 + 5/11)
D = 10 x 12/11
D = 120/11
E = (16/4 + 3/4) x (8/3 - 7/3)
E = 19/4 x 1/3
E = 19/(4 x 3)
E = 19/12
F = 2/9 x (7/4 - 5/4)
F = 2/9 x 2/4
F = (2 x 2)/(9 x 4)
F = 4/4 x 1/9
F = 1 x 1/9
F = 1/9
G = (1/12 + 5/12) x 2/3
G = 6/12 x 2/3
G = (2 x 6)/(2 x 6 x 3)
G = 1/3
