Bonsoir,

Exercice 6 en pièce jointe

Exercice 7 :

A = (11 × (-3)) / ((-5) × (-2))

A = -33/10

B = ((-3) × 2 × (-5)) / (-10 × 4)

B = 30/(-40) = -3/4

C = - ((7 × (-2) × 8) / (14 × 5))

C = - (-112/70) = 112/70 = (14 × 8) / (14 × 5)

C = 8/5

D = ((-1) × (-3) × (-2) × (-1)) / (5 × (-4))

D = (3 × 2) / (-20) = 6/(-20) = -3/10

Exercice 8 :

k) - ((-53)/(16)) = 53/16 = 3,31

l) - ((-1,7)/(-0,7)) = -1,7/0,7 = - 2,43

résultats arrondis au centième près

Bonne soirée !