Bonjour,
-3 /(6/5) = -3 * 5/6 = -15/6 = -5/2
(-3/6) / 5 = -3/6 * 1/5 = -3/30 = -1/10
6 + 1/5 = 30/5 +1/05 = 31/5
-7/5 * 5/30 = - 35 / 150= -7/30
