Bonjour
A = 5/17 : (3/32 - 1/32)
A = 5/17 : 2/32
A = 5/17 x 32/2
A = 160/34
A = (2 x 80) / (2 x 17)
A = 80/17
B = 11/20 - 12/23 : - 2/23
B = 11/20 - 12/23 x - 23/2
B = 11/20 + 276/46
B = 11/20 + (46 x 6) / (46 x 1)
B = 11/20 + 6
B = 11/20 + (6 x 20) / (1 x 20)
B = 11/20 + 120/20
B = 131/20
C = 7/5 : (- 5/21 + - 1/21)
C = 7/5 : - 6/21
C = 7/5 x - 21/6
C = - 147/30
C = (3 x - 49) / (3 x 10)
C = - 49/10
D = - 11/2 - (7/3 + - 13/21)
D = - 11/2 - [(7 x 7) / (3 x 7) - 13/21]
D = - 11/2 - (49/21 - 13/21)
D = - 11/2 - 36/21
D = (- 11 x 21) / (2 x 21) - (36 x 2) / (21 x 2)
D = - 231/42 - 72/42
D = - 303/42
D = (3 x - 101) / (3 x 14)
D = - 101/14
E = - 7/5 + - 3/20 x - 7/3
E = - 7/5 + 21/60
E = (- 7 x 12) / (5 x 12) + 21/60
E = - 84/60 + 21/60
E = - 63/60
E = (3 x - 21) / (3 x 20)
E = - 21/20
F = - 8/5 + - 7/3 : - 5/32
F = - 8/5 - 7/3 x - 32/5
F = - 8/5 + 224/15
F = (- 8 x 3) / (5 x 3) + 224/15
F = - 24/15 + 224/15
F = 200/15
F = (5 x 40) / (5 x 3)
F = 40/3.
