Bonjour, est ce que vous pourriez me donner le résultat des ces calculs svp?

bonjour

A =   12/18 -  15/18  - 2/18

=  - 5 /18

B )  - 4/3 - (  - 20/24 - 6/24)

= - 4/3 - (  - 26 /24)

 =  - 32/24 + 26 /24

 = - 6 /24 = - 1  /4

C  = 10/3 x 1 - 18

=  10/3 - 54/3

= - 44/3

D  =    30 x 5 x 4 x - 7  / 2 x - 3 x 5 x 12

=  5 x 2 x - 7 / 12

= - 70/12

= - 35/6

Bonjour,

A = 2/3 - 5/6 + 1/- 9

A = (2 x 6) / (3 x 6) - (5 x 3) / (6 x 3) - (1 x 2) / (9 x 2)

A = 12/18 - 15/18 - 2/18

A = 12/18 - 17/18

A = - 5/18

B = - 4/3 - (- 5/6 - 1/4)

B = - 4/3 - [(5 x 2) / (6 x 2) - (1 x 3) / (4 x 3)]

B = - 4/3 - (10/12 - 3/12)

B = (4 x 4) / (3 x 4) - 7/12

B = 16/12 - 7/12

B = 9/12

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

B = 3/4

C = 2/3 x 5/3 x 60/60 x - 90/5

C = 10/9 x 1 x (- 18)

C = - 180/9

C = - 20

D = 30/2 x 5/- 3 x 4/5 x - 7/12

D = 15 x (- 20/15) x (- 7/12)

D = - 20 x (- 7/12)

D = 140/12

D = (4 x 35) / (4 x 3)

D = 35/3.