Respuestas

2012-05-02T04:53:43+02:00

5/3+(-1/2)=5/3-1/2=(10-3)/6=7/6

-1/5+7/4=(-4+35)/20=31/20

1,7+2,34=4,04

-3/5+(-5/4)=(-12-25)/20=-37/20

3/5+1/3=(9+5)/15=14/15