bonsoir vous pouvez m aider svp c est pour demain merci d avance

Bonsoir,

A = 5/6 + 2/3

A = 5/6 + (2×2)/(3×2)

A = 5/6 + 4/6 = (5 + 4)/6 = 9/6 = 3/2

B = 3/4 + (-3)/16

B = (3×4)/(4×4) - 3/16

B = 12/16 - 3/16 = 9/16

C = 8/35 + (-4)/5

C = 8/35 + (-4×7)/(5×7)

C = 8/35 - 28/35 = -20/35 = -4/7

Bonne soirée !

Réponse :

Explications étape par étape

Bonjour

Calculer :

A = 5/6 + 2/3

A = 5/6 + (2 x 2)/(3 x 2)

A = 5/6 + 4/6

A = 9/6

A = (3 x 3)/(2 x 3)

A = 3/2

B = 3/4 - 3/16

B = (3 x 4)/(4 x 4) - 3/16

B = 12/16 - 3/16

B = 9/16

C = 8/35 - 4/5

C = 8/35 - (4 x 7)/(5 x 7)

C = 8/35 - 28/35

C = -20/35

C = (-5 x 4)/(5 x 7)

C = -4/7