coucou
exercice 2
A= 6/7 - 4/7 * 5/2
A= 6/7 - 20/14
A= (6*2)/(7*2) - 20/14
A= 12/14 - 20/14
A= -8/14
A= -4/7
B= 2/3 - 3/2 * 4/9 + 1/2
B= 2/3 -12/18 + 1/2
B= 2/3 -2/3 + 1/2
B= 1/2
C= (2-1/3)/(5+5/6)
C= (6/3 -1/3)/(30/6 +5/6)
C= (5/3)/(35/6)
C= 2/7
D=(2/5)/(3-7/10)
D=(2/5)/(30/10-7/10)
D=(2/5)/(23/10)
D= 4/23
Exercice 3
G=(4/3) /(12/9)
G= 1
H= 8/9 / 16/3
H= 1/6
I= 20/13 / 15/26
I= 8/3
voila j espere t avoir aider
