Bonsoir
A = 11/6 - (3/4 - 5/6)
A = (11 x 2) / (6 x 2) - [(3 x 3) / (4 x 3) - (5 x 2) / (6 x 2) )
A = 22/12 - (9/12 - 10/12)
A = 22/12 - (- 1/12)
A = 22/12 + 1/12
A = 23/12
B = 3/11 - 5/11 x - 2/3
B = (3 x 3) / (11 x 3) + 10/33
B = 9/33 + 10/33
B = 19/33
C = (5/8 - 7/6) x (8/5 - 3/35)
C = [(5 x 3) / (8 x 3) - (7 x 4) / (6 x 4)] x [(8 x 7) / (5 x 7) - 3/35]
C = (15/24 - 28/24) x (56/35 - 3/35)
C = - 13/24 x 53/35
C = - 689/840
D = - 5/12 - 7/12 : 5/18
D = - 5/12 - 7/12 x 18/5
D = (- 5 x 5) / (12 x 5) - 126/60
D = - 25/60 - 126/60
D = - 151/60
E = (- 1/24 - - 2/24) : (- 3/8 - 1)
E = (- 1/24 + 2/24) : [- 3/8 - (1 x 8) / (1 x 8)]
E = 1/24 : (- 3/8 - 8/8)
E = 1/24 : - 11/8
E = 1/24 x - 8/11
E = - 8/264
E = (8 x - 1) / (8 x 33)
E = - 1/33
F = (- 2/15 + 3/5) : (- 2 + 3/10)
F = [- 2/15 + (3 x 3) / (5 x 3)] : [(- 2 x 10) / (1 x 10) - 3/10]
F = (- 2/15 + 9/15) : (- 20/10 - 3/10)
F = 7/15 : - 23/10
F = 7/15 x - 10/23
F = - 70/345
F = (5 x - 14) / (5 x 69)
F = - 14/69.
