Aidez moi svp :( Calculer et simplifier lorsque c'est possible I= 2/3 x -7/5 - 9/10 J= 13/-11 x 5/2 - 3/2 x 7/9 K= 13/14 - 1/15 x 10/7 L= ( -3/4 - 2/3 ) x 5/-8

Bonjour

Calculer et simplifier lorsque c'est possible

I= 2/3 x -7/5 - 9/10

I = - 14/15 - 9/10

I  = (- 14 x 2) / (15 x 2) - (9 x 3) / (10 x 3)

I = - 28/30 - 27/30

I = - 45/30

I = (15 x - 3) / (15 x 2)

I = - 3/2

J= 13/-11 x 5/2 - 3/2 x 7/9

J = - 65/22 - 21/18

J= (65 x 9) / (22 x 9) - (21 x 11) / (18 x 11)

J = 585/198 - 231/198

J = 354/198

J = (6 x 59) / (6 x 33)

J = 59/33

K= 13/14 - 1/15 x 10/7

K = 13/14 - 10/105

K = (13 x 15) / (14 x 15) - (10 x 2) / (105 x 2)

K = 195/210 - 20/210

K = 175/21

K = (35 x 5) / (35 x 6)

K = 5/6

L= ( -3/4 - 2/3 ) x 5/-8

L = [(- 3 x 3) / (4 x 3) - (2 x 4) / (3 x 4)] x - 5/8

L = (- 9/12 - 8/12) x - 5/8

L = - 17/12 x - 5/8

L = 85/96.