Réponses

2014-03-10T17:05:13+01:00
A=5/8+3/4 = 5/8 +6/8 = 11/8
C=6/5-3/10 = 12/10 -3/10 = 9/10
B=7/3+2/9 = 21/9 +2/9 = 23/9
D=22/15-4/3 = 22/15 - 20/15 = 2/15