Réponses

2012-12-02T14:41:56+01:00
2012-12-02T14:49:36+01:00

2/4 - 4/3 * 5/2 = 6/12 - 16/12 * 5/2 = -10/12 * 5/2 = -10*5/12*2 = -50/24