Réponses

2014-09-16T00:06:19+02:00
-4+16/3-(-11/12)=-4*12/12+(16*4)/(3*4)+11/12
=(-4*12+16*4+11)/12=(-48+64+11)/12=27/12=9/4

(7/12-1/8)/(7/6+7/16)=(28/48-6/48)/(56/48+21/48)
=(28-6)/(56+21)=22/77=2/7

-4/15+(2+7/-30)=-4/15+2-7/30=(-8+60-7)/30
=45/30=3/2
c koi la petite etoile stp
merci bocoup
de rien
tu me sauve merci c cool
multiplication