bonsoir,
a. 1/5/(-3)=
1/ (5*-3) =-1/15
b.3/8/(-6)=
3/(8/-6*8) = 3/ (-8/48)=
(3*48)/ -8 =144/ -8=
-18
c.-15/8/5
(-15*5) /8=
-45/8
d.-3/6/5
-3/(6/5) =
(-3*5)/6 =
-15/6 = -5/2
e.-3/6/5
-3/(6/5) =
(-3*5) /6 =
-15/6 =
-5/2
f.-7/5/6+1/5
-7/(5/6) +1/5
(-7 *6)/5 +1/5=
-42/5 =1/5 =
-41/5