Bonjour vous pouvez m'aider pour mon exercice 2 merci.

Bonjour,

A = 5 x 2/3 - 1/3

A = 10/3 - 1/3

A = 9/3

A = (3 x 3) / (3 x 1)

A = 3

B = 7/4 - 3/4 x 3/2

B = 7/4 - 9/8

B = (7 x 2) / (4 x 2) - 9/8

C = 14/8 - 9/8

C = 5/8

C = (5/6 + 7/12) x 3/5

C = [(5 x 2) / (6 x 2) + 7/12] x 3/5

C = (1012 + 7/12) x 3/5

C = 17/12 x 3/5

C = 51/60

C = (3 x 17) / (3 x 20)

C = 17/20

D = 3/4 x 2/9 + 28/15 x 25/14

D = 6/36 + 700/210

D = (6 x 1) / (6 x 6) + (70 x 10) / (70 x 3)

D = 1/6 + 10/3

D = 1/6 + (10 x 2) / (3 x 2)

D = 1/6 + 2/6

D = 3/6

D = (3 x 1) / (3 x 2)

D = 1/2.