Réponses

2014-03-05T12:48:37+01:00
A = 1/2 + 3/2 x 7/3
A = 1/2 + 7/2
A = 8/2
A = 4

B = (1/2 + 3/2) x 7/3
B = 4/2 x 7/3
B = 28/6
B = 14/3

C = 20/9 - 5/3 x 2/3
C = 20/9 - 10/9
C = 10/9

D=(20/9 - 5/3) x 2/3
D = (20/9 - 15/9) x 2/3
D = 5/9 x 2/3
D = 10/27

J'espère t'avoir aidé(e)! :)