Réponses

2013-12-21T17:47:00+01:00
c=(5/6+7/12)*3/5
=(10/12+7/12)*3/5
=17/12*3/5
=51/60
=17/20
2013-12-21T17:52:15+01:00
C=(5/6+7/12)x3/5
c=(10/12+7/12)x3/5
c=17/12x3/5=51/60 ou 17/20