Réponses

2014-09-20T15:03:30+02:00


A = 11/3 - (5/18 + 35/18)

A = 11/3 - 40/18

A = 66/18 - 40/18

A = 26/18

A = 13/9


B = 25/6 - (4- 2/3)

B = 25/6 - 10/3

B = 25/6 - 20/6

B = 5/6


C = (1 + 1/2) x 3 - 1/3

C = 3/2 x 3 - 1/3

C = 9/2 - 1/3

C = 27/6 - 2/6

C = 21/6