Bonjour,
5 / 2 - 5 / 2 * (-3 / 11) <== Attention la multiplication avant la soustraction
= 5 / 2 - (-15 / 22)
= 5 / 2 + 15 / 22
= 5 * 11 / 2 * 11 + 15 / 22
= 55 / 22 + 15 / 22
= 70 / 22
= 35 / 11
