Aidez moi svp Exercice 6 et 7.

Réponse:

ex 6

a. 8/ 9 x 7/5 = 56/45

b . 7/9 x 7/9 = 49/81

c . 4 x 7/5 = 28/5

ex 7

a. 2/7 x 5/3  = 10/21

b . 8/3 x 8/9 = 64/27

c . 3 x 5/8 = 15/8

Réponse:

Ex: 6:

a. 8/9×7/5=56/45.

b. 7/9×7/9=49/81.

c. 4/1×7/5=28/5.

Ex: 7:

a. 2/7×5/3=10/21.

b. 8/3×8/9=64/27.

c. 3×5/8=15/8.