bonjour merci de votre aide pour cet exercice de maths svp merci ​

Réponse :

Explications étape par étape

Bonjour

Calcule :

A = 7/3 - 4/3 : 8/5

A = 7/3 - 4/3 x 5/8

A = 7/3 - 4/8 x 5/3

A = 7/3 - 1/2 x 5/3

A = 7/3 - 5/6

A = 14/6 - 5/6

A = 9/6

A = 3/2

B = -4/9 x 1/5 : 3/7

B = -4/45 x 7/3

B = -28/135

C = -8/3 : -5/6 + 7/4

C = -8/3 x -6/5 + 7/4

C = 6/3 x 8/5 + 7/4

C = 2 x 8/5 + 7/4

C = 16/5 + 7/4

C = 64/20 + 35/20

C = 99/20

D = -7/5 : (2/9 - 7/18)

D = -7/5 : (4/18 - 7/18)

D = -7/5 : (-3/18)

D = -7/5 x -18/3

D = -7/5 x -6

D = 42/5