Réponses

2013-12-01T20:32:06+01:00
4/-5 
=-4/5

-8/-7 
=8/7

5,2/-7 
=-5.2/7
=-52/70
=-26/35

7/-2,1
=-70/21

8,2/0,12 
=820/12
=410/6
=205/3

-1/-3,54
=1/3.54
=100/354
=50/177