Bonsoir,
a)
9/7 = 54/42
54/42 < 57/42
b)
-16/3 = -64/12
-23/4 = -207/12
-64/12 > -207 /12
c)
-5/8 = -15/24
-15/24 > -19/24
d)
-7/5 = -14/10
-14/10 > -15/10
e)
7/15 = 84/180
84/180 > 60/180
f)
7/12 = 63/108
63/ 108 < 84/108
