Réponses

2014-04-16T13:50:19+02:00
A=8/5-3/4
A = 32/20 - 15/20
A = 17/20 B=-5/2+1/3
B = -15/6 + 2/6
B = -13/6
C=4/5:5/6
C = 4/5 x 6/5
C = 24/25
D=-4/3x(-1/5)
D = -4/3 x -1/5
D = 4/15
E=4/9+2/15
E = 20/45 + 6/45
E = 26/45
F=4/3:2
F = 4/3 x 1/2
F = 4/6
F = 2/3