Bonjour
Effectue les calculs suivants et simplifie quand c'est possible:
A=-2/6×(6/-5)
A = 12/30
A = (6 x 2) / (6 x 15)
A = 2/15
B=8/10×(-7/4)
B = - 56/40
B = (8 x - 7)/ (8 x 5)
B = - 7/5
C=5/2:7/3
C = 5/2 x 3/7
C = 15/14
D=3/12:(-6/5)
D = 3/12 x - 5/6
D = - 15/72
D = (3 x - 5) / (3 x 24)
D = - 5/24
E= 2/9
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5/-3
E = 2/9 x - 3/5
E = - 6/45
E = (3 x - 2) / (3 x 15)
E = - 2/15
F=-3/8:5/2+13/40
F = - 3/8 x 2/5 + 13/40
F = - 6/40 + 13/40
F = 7/40.
