j'ai besoin d'aide SVP pour les fractions A : 11×(-3)/(-5)×(-2) B : 7×(-2)×8/14×5 C : (-3)×2×(-5)/-10×4 D : (-1)×(-3)×(-2)×(-1)/5×4 PS : / = sur

A = 11 x ( - 3 ) / ( - 5 ) x ( - 2 )
= 33 / 5 x ( - 2 )
= - 66 / 5

B = 7 x ( - 2 ) x 8 / 14 x 5
= - 14 x 20 / 7
= - 40

C = ( - 3 ) x 2 x ( - 5 ) / - 10  x 4
= - 6 x 2
= - 12 

D = ( - 1 ) x ( - 3 ) x ( - 2 ) x ( - 1 ) / 5 x 4
= 3 x ( - 8 )  x ( - 1 ) / 5
= - 24 x ( - 1 ) / 5
= 24 / 5

A= 11 x (-3) / (-5) x (-2)
  = -33/10

B= 7 x (-2) x 8 / 14 x 5
  = -14 x 8 / 70
  = -112/70
  = -8 x 14 / 5 x 14
  = -8/5

C= (-3) x 2 x (-5) / -10 x 4
  = 30/-40
  = -3 x 10 / 4 x 10
  = -3/4

D= (-1) x (-3) x (-2) x (-1) / 5 x 4
  = 3 x 2 / 20
  = 6/20
  = 3 x 2 / 2 x 10
  = 3/10