Réponses

2013-10-13T18:14:33+02:00
2013-10-13T18:22:05+02:00
18*28/35*27=2*4/5*3=8/15                  15*36/44*42=5*9/11*14=45/154      6*7/10*1/12=1*7/10*2=7/20