Bonjour pouvez-vous m’aider à faire l’exercice 9 ✅❤️svp seulement le B ,G ,E ,H

Réponse :

Explications étape par étape

Bonjour

Exercice 9 :

B = 25/(-8) : (-15)/(-4)

B = -25/8 x 4/15

B = -25/15 x 4/8

B = (-5x5)/(5x3) x 4/(2 x 4)

B = -5/3 x 1/2

B = -5/6

G = -17/27 : (-34)/(-21)

G = -17/27 x 21/34

G = -17/34 x 21/27

G = -17/(2 x 17) x (3 x 7)/(3 x 9)

G = -1/2 x 7/9

G = -7/9

E = -24/21 : (-32)/14

E = -24/21 x -14/32

E = 24/32 x 14/21

E = (3 x 8)/(4 x 8) x (2 x 7)/(3 x 7)

E = 3/4 x 2/3

E = 3/3 x 2/4

E = 1/2

H = 39/(-42) : (-26)/56

H = -39/42 x -56/26

H = 39/26 x 56/42

H = (3 x 13)/(2 x 13) x (4 x 14)/(3 x 14)

H = 3/2 x 4/3

H = 3/3 x 4/2

H = 2