Réponse :
Explications étape par étape
Bonjour
Décomposer :
45 / 5 = 9
9 / 3 = 3
3 / 3 = 1
45 = 3 x 3 x 5
65 / 5 = 13
13 / 13 = 1
65 = 5 x 13
34 / 2 = 17
17 / 17 = 1
34 = 2 x 17
48 / 2 = 24
24 / 2 = 12
12 / 2 = 6
6 / 2 = 3
3 / 3 = 1
48 = 2 x 2 x 2 x 2 x 3 = 2^4 x 3
Rendre irréductible :
60/40 = (20 x 3)/(20 x 2) = 3/2
126/198 = (18 x 7)/(18 x 11) = 7/11
105/90 = (15 x 7)/(15 x 6) = 7/6
