L exercice 2 et 3 svp

Bonsoir,

exercice 2

a. 5+3/9 = 8/9
b.3-1/7 = 2/7
c.3+1+5/14 = 9/14
d.6/17 + 4/17 = 6+4/17

exercice 3

a.7/9
b.43+28/78 = 71/78
c. 13-2/17 = 11/17
d.91-90/121 = 1/121
e.101+26/4 = 127/4
f.12-12/12 = 12/12

Voilà, j'espère que tu as compris.

Exercice 2:
A. 5/9+3/9= 5+3/9= 8/9
B. 3/7-1/7= 3-1/7= 2/7
C.3/14+1/14+5/14= 3+1+5/14= 9/14
D.6/17+4/17= 6+4/17= 10/17

Exercice 3:
A. 7/9
B. 71/78
C. 11/17
D. 1/121
E. 127/4
F. 0 ou 1 je sais plus