Bonjour quelqu'un peut m'aider à faire cet exercice svp ?

Bonjour,

A = 2/3 + 4/5

A = (2 x 5) / (3 x 5) + (4 x 3) / (5 x 3)

A = 10/15 + 12/15

A = 22/15

B = 7/4 - 4/3

B = (7 x 3) / (4 x 3) - (4 x 4) / (3 x 4)

B = 21/12 - 16/12

B = 5/12

C = 3 + 2/5

C = (3 x 5) / (1 x 5) + 2/5

C = 15/5 + 2/5

C = 17/5

D = 2/9 + 5/3

D = 2/9 + (5 x 3) / (3 x 3)

D = 2/9 + 15/9

D = 17/9

E = 6/10 + 4/5

E = 6/10 + (4 x 2) / (5 x 2)

E = 6/10 + 8/10

E = 14/10

E = (2 x 7) / (2 x 5)

E = 7/5

F = 9/4 + 7

F = 9/4 + (7 x 4) / (1 x 4)

F = 9/4 + 28/4

F = 37/4

G = 6/7 - 5/2

G = (6 x 2) / (7 x 2) - (5 x 7) / (3 x 7)

G = 12/14 - 35/14

G = - 23/14

H = coupée

Réponse :

Explications étape par étape

Bonjour

A = 2/3 + 4/5

A = 10/15 + 12/15

A = 22/15

B = 7/4 - 4/3

B = 21/12 - 16/12

B = 5/12

C = 3 + 2/5

C = 15/5 + 2/5

C = 17/5

D = 2/9 + 5/3

D = 2/9 + 15/9

D = 17/9

E = 6/10 + 4/5

E = 6/10 + 8/10

E = 14/10

E = 7/5

F = 9/4 + 7

F = 9/4 + 28/4

F = 37/4

G = 6/7 - 5/2

G = 12/14 - 35/14

G = -23/14

H = 3 + 1/3 + ...