Bonjour,
a=
2/3 * 1/5 = 2/15
b=
-5/7 *-1/4 = 5/28
c=
5/6 * -11/7 = - 55/42
d=
8* 8 = 64
e=
-3/2 * -7/5 = 21/10
f=
1/10 * -9/7 = - 9/70
g=
-8/15 * -5/4 = 40/60 = 4/6 = 2/3
h=
9/10 * -1/3 = -9/30 = -3/10
i=
-4/45 * 15/16 = -60/720 = -1/12
j=
-5/6 *-18/15 = 90/90 =1
k=
12*-4/3 = -48/3 = -16
l=
1* -4/7 = -4/7
