Réponses

2013-11-26T20:31:27+01:00
-0.4 = -4/60=-2/30=-1/15
6

-12=4/5
-15

3.5=-35/28
-2.8

2.5:10=2.5/10=25/100=1/4

6 dixiemes=6/10=3/5

--4.2=42/180=14/60=7/30
18