Réponse :
Explications étape par étape
Bonsoir
A = 5/6 - 1/3
A = 5/6 - (1 x 2)/(3 x 2)
A = 5/6 - 2/6
A = 3/6
A = 3/(2 x 3)
A = 1/2
B = -3/4 + 7/24
B = -(3 x 6)/(4 x 6) + 7/24
B = -18/24 + 7/24
B = -11/24
C = -8/45 - 2/5
C = -8/45 - (2 x 9)/(5 x 9)
C = -8/45 - 18/45
C = -26/45
D = 9/14 - 5
D = 9/14 - (5 x 14)/(14 x 1)
D = 9/14 - 70/14
D = -61/14
E = 1/6 - 17/30 + 4/5
E = (1 x 5)/(6 x 5) - 17/30 + (4 x 6)/(5 x 6)
E = 5/30 - 17/30 + 24/30
E = 29/30 - 17/30
E = 12/30
E = (6 x 2)/(6 x 5)
E = 2/5
F = 21/25 - 3/5
F = 21/25 - (3 x 5)/(5 x 5)
F = 21/25 - 15/25
F = 6/25
