Bonjour pouvez vous m’aider svp exercice 1

Réponse :

Bonsoir

Explications étape par étape

A= (11/3-7)/(25/6)

A = (11/3-21/3)/(25/6)

A = (-10/3)/(25/6)

A = -10/3*6/25

A = (-5*2*3*2)/(3*5*5)

A = -4/5

B = (1/3-1/5):2/5

B = (5/15-3/15):2/5

B = 1/15 * 5/2

B = (1*5)/(5*3*2)

B = 1/6

C = 5/4-(9/13*65/81)+11/36

C = 5/4-(9*13*5)/(13*9*9)+11/36

C = 5/4 -5/9 + 11/36

C = 45/36 - 20/36 + 11/36

C = 36/36

C = 1

D = 13/5 * (19/26-2/13)

D = 13/5 * (19/26-4/26)

D = 13/5 * 15/26

D = (13*5*3)/(5*13*2)

D = 3/2