Réponses

Meilleure réponse !
2014-09-05T20:17:48+02:00
2014-09-05T20:41:36+02:00
A = - 7/4 x 11/9
A = - 77/36

B = 15 x 14/35
B = 210/35
B = 35 x 6 / 35 x 1
B = 6/1
B = 6

C = 6/7 / 9/5
C = 6/7 x 5/9
C = 35/63
C = 7 x 5 / 7 x 9
C = 5/9

D = 15/8 / (- 6)
D = 15/8 x - 1/6
D = - 15/48
D = 3 x - 5 / 3 x 16
D = - 5/16