pourier vous m'aider sur cette exercices ​

Bonjour,

1)

a. 68 = 2 x 2 x 17

b. 96 = 2 x 2 x 2 x 2 x 2 x 3

b. 180 = 2 x 2 x 3 x 3 x 5

2)

a. 96/68 =  [(2 x 2) x (2 x 2 x 2 x 3)] / [(2 x 2) x 17] = (4 x 24) / (4 x 17) = 24/17

b. 180/96 = [(2 x 2 x 3) x (3 x 5)] / [(2 x 2 x 3) x (2 x 2 x 2)] = (12 x 15) / (12 x 8) = 15/8

c. 68/180 = [(2 x 2) x 17] / [(2 x 2) x (3 x 3 x 5)] = (4 x 17) / (4 x 45) = 17/45.