Bonjour Jai besoin d'aide svp merci bcp

Réponse :

Explications étape par étape :

Bonjour

J = 12/5 + 3/5 = 15/5 = 3

K = 4/7 + 3/5 = 20/35 + 21 / 35 = 41/35

L = 8/18 - 5/18 = 3/18 = 1/6

M = 4/7 - 8/21 = 12/21 - 8/21 = 4/21

N = 4/7 × 3/5 = 12/35

O = 3 × 4/5 = 12/5

P = 4/7 / 3/5 = 4/7 × 5/3 = 20/21

Q = 4 / 1/4 = 4 × 4 = 16

R = 1/6 - 5/2 × 4/3 = 1/6 - 20/6 = - 19/6

S = 3/4 - 1/2 × 5/2 - 3/2 = 3/4 - 5/4 - 6/4 = - 8/4 = - 2