Aider moi svp suis en 5 ème merci d'avance

Réponse :

Bonsoir

Explications étape par étape

D'après ce que j'ai pu lire !

A = 7/6 +2/3

A = 7/6 +2/3 X 2/2

A = 7/6 + 4/6 = 11/6

B = 4/5 +2/15

B = 4/5 X 3/3 +2/15

B = 12/15 +2/15

B = 14/15

C = 7/5 +1

C = 7/5 +1 X 5/5

C = 7/5 +5/5

C = 12/5

D = 5 + 3/2

D = 5 X 2/2 +3/2

D = 10/2 +3/2

D = 13/2

Bonsoir,

A = 7/6 + 2/3

A = 7/6 + 2 x 2/3 x 2

A = 7/6 + 4/6

A = 11/6

B = 4/5 + 2/15

B = 4 x 3/5 x 3 + 2/15

B = 12/15 + 2/15

B = 14/15

C = 7/5 + 1

C = 7/5 + 5/5

C = 7 + 5/5

C = 12/5

D = 5 + 3/2

D = 5/1 + 3/2

D = 5 x 2/1 x 2 + 3/2

D = 13/2

E = 8/9 - 1/3

E = 8/9 - 1 x 3/3 x 3

E = 8/9 - 3/9

E = 5/9

F = 3 - 5/7

F = 3 x 7/1 x 7 - 5/7

F = 21/7 - 5/7

F = 16/7

G = 13/12 - 19/48

G = 13 x 4/12 x 4 - 19/48

G = 52/48 - 19/48

G = 33/48

H = 17/13 - 11/65

H = 17 x 5/13 x 5 - 11/65

H = 85/65 - 11/65

H = 74/65

J'espère que mon aide te seras bénéfique!