Bonsoir,
Exercice 38
a= 12/9 = 4/3
( on divise tout par 3)
c= 18/12 = 3/2
(par 6)
e= 18/18 = 1
(par 18)
b = 4/8 = 1/2
(par 4)
d = 16/11
on laisse!
f = 26/13 = 2
(par 13)