Réponses

2013-10-30T17:28:09+01:00
65/18= 15/3 x 5/3 x 1/2
78/30= 39/3 x 2/10 x 1/1
45/24= 1/2 x 5/2 x 9/6
117/27= 1/9 x 13/3 x 9/1