Réponses

2012-10-30T15:46:21+01:00

6/7 : 2/243=6/7*243/2=3/7*243=729/7


bonne chance

2012-10-30T15:46:53+01:00

6/7 : 2/243 = (6/7)*(243/2)=(6*243)/(7*2)=(3*2*243)/(7*2)=(3*243)/7=729/7