Bonjour à tous Pourriez vous m aider pour ces 2 exercices .IL FAUT METTRE LES DIFFERENTES ETAPES DE CALCUL Merci d avance

Bonjour

A = (35/7-2/7) : (3-2/14)

A= 33/7 : (3-1/7)

A = 33/7 : (21/7-1/7)

A = 33/7 : 20/7

A = 33/7 x 7/20

A = 33/20

E =15/-14 x -8/9 x 49/20

E = 15/-14 x 49/20 x -8/9

E = 5*3/-7*2 x 7*7/5*4 x -8/9

E = 3/-7*2 x 7*7/4 x -8/9

E = 3/-2 x 7/4 x -4*2/9

E = -3/2 x 7 x -2/9

E = -3/2 x -2/9 x 7

E = -3 x -1/9 x 7

E = 21/9

E = 7/3

bonjour,

D = (5-2/7) : (3 - 2/14)

D = (33/7) : (40/14) = 33/7 x 14/40 = 33 x 7 x 2 / 7 x 20 x 2 = 33/20

E = -15/14 x (1-9)/9 x (-49/20)

E = - 3 x 5 x 4 x 2 x 7 x 7 / 2 x 7 x 3 x 3 x 5 x 4

E = - 7/3

:)