Réponse :
52)
a) - 3/6:5 = - 3 x 5/6 = - 5/2
b) - 3:6/5 = - 3/6x5 = - 1/10
c) - 7/5/(6 + 1/5) = - 7/5/31/5 = - 7/31
53)
a) 2/9/-5/3 = 2x3/9 x (-5) = - 2/15
b) 3/5/1/5 = 3x5/5x1 = 3
c) -1 :4/3 = - 1/4x3 = - 1/12
d) 22:7/-11 = 22/7 x (-11) = - 2/7
Explications étape par étape :