Bonjour pouvez vous m'aider svp merci l'exercice 10 merciii

Réponse :

Bonjour

Explications étape par étape

A = 2/3 +4

A = 2/3 + 4 X 3/3

A = 2/3 12/3

A = 14/3

B = 2/3 X 4

B = 8/3

C = 3/4 -12/5

C = 3/4 X 5/5 -12/5 X 4/4

C = 15/20 -48/20

C = -33/20

D = 3/4 X 12/5

D = 36/20 = 18/10 = 9/5

E= -2/5 +4/7

E = -2/5 X 7/7 +4/7 X 5/5

E = -14/35 +20/35

E = 6/35

F = 12/7 +6/7 X 1/3

F = 12/7 + 6/21

F = 12/7 X 3/3 +6/21

F = 36/21 +6/21

F = 42/21

F = 14/7= 2

G = 5/3 -16/45 X 35/8

G = 5/3 -560/360

G = 5/3X 120/120 -560/360

G = 600/360 -560/360

G = 40/360 = 20/180 = 2/18 = 1/9

H = 14/3 sur 3/4 -1/6

14/3

3/4 X 6/6 -1/6 X 4/4

14/3

18/24 -4/24

14/3

14/24

14/3 X 24/14

336/42 = 56/7 = 8