Réponses

2014-08-23T15:41:26+02:00
Bonjour

A = -1/2 + 1/3 = -3/6 + 2/6 = -1/6

B = 3/4 - 5/6 = 18/24 - 20/24 = -2/24 = -1/12

C = -5/12 - 7/16 = -80/192 - 84/192 = -164/192 =-41/48

D = -5/18 - 1/8 = -40/144  -  18/144 = -58/144 = -29/72