Réponses

2012-09-10T19:53:28+02:00

Bonjour , 

a= 1+1/5 = 5/5+1/5 =6/5

b=2/3-1= 2/3 - 3/3 =-1/3

c=-1+5/2= -2/2 +5/2 =3/2

d= 3+7/8 = 24/8 +7/8 =31/8

e =-3/4-3 = -3/4 - 12/4 = -15/4

f =-6-2/7 =-42/7 -2/7 =-44/7