Bonjour
La prochaine fois merci de recopier les fractions
A = (1 - 5/6) / (1 + 1/6)
A = [(1 x 6) / (1 x 6) - 5/6] / [(1 x 6) / (1 x 6) + 1/6]
A = (6/6 - 5/6) : (6/6 + 1/6)
A = 1/6 : 7/6
A = 1/6 x 6/7
A = 6/42
A = (6 x 1) / (6x 7)
A = 1/7
B = (1/5 - 5/4) : 7/5
B = [(1 x 4) / (5 x 4) - (5 x 5) / (4 x 5)] : 7/5
B = (4/20 - 25/20) : 7/5
B = - 16/20 : 7/5
B = - 16/20 x 5/7
B = - 80/140
B = (20 x - 4) / (20 x 7)
B = - 4/7
C = 5/4 + 11/4 x 20/33
C = 5/4 + 220/132
D = 5/4 + (44 x 5) / (44 x 3)
C = 5/4 + 5/3
C = (5 x 3) / (4 x 3) + (5 x 4) / (3 x 4)
C = 15/12 + 20/12
C = 35/12
D = 1/12 : (2 - 3/7)
D = 1/12 : [(2 x 7) / (1 x 7) - 3/7]
D = 1/12 : (14/7 - 3/7)
D = 1/12 : 11/7
D = 1/12 x 7/11
D = 7/132
E = 4 - 3/4 x (1/3 - 1/6)
E = 4 - 3/4 x [(1 x 2) / (3 x 2) - 1/6]
E = 4 - 3/4 x (2/6 - 1/6)
E = 4 - 3/4 x 1/6
E = 4 - 3/24
E = (4 x 24) / (1 x 24) - 3/24
E = 96/24 - 3/24
E = 93/24
E = (3 x 31) / (3 x 8)
E = 31/8
F = 3 x 15/9 - 13/5
F = 45/9 - 13/5
F = (45 x 5) / (9 x 5) - (13 x 9) / (5 x 9)
F = 225/45 - 117/45
F = 108/45
F = (9 x 12) / (9 x 5)
F = 12/5.
G = (3/4 - 2/3) : 7/6
G = [(3 x 3) / (4 x 3) - (2 x 4) / (3 x 4)] : 7/6
G = (9/12 - 8/12) : 7/6
G = 1/12 : 7/6
G = 1/12 x 6/7
G = 6/84
G = (6 x 1) / (6 x 14)
G = 1/14
H = (2 + 2/3) : (4/5 - 2/3)
H = [(2 x 3) / (1 x 3) + 2/3] : [(4 x 3) / (5 x 3) - (2 x 5) / (3 x 5)]
H = (6/3 + 2/3) : (12/15 - 10/15)
H = 8/3 : 2/15
H = 8/3 x 15/2
H = 120/6
H = (6 x 20) / (6 x 1)
H = 20.
