Mathématiques

Question

Bonsoir, svp aidez moi pour mon contrôle de math​
Bonsoir, svp aidez moi pour mon contrôle de math​

0 Commentaire.

2 Réponse

  • Bonsoir,

    J = ( 1/2 - 3/4 ) × 4/9

    = ( 2/4 - 3/4 ) × 4/9

    = -1/4 × 4/8

    = - 4/32

    = - 1/8

    K = 1/2 - 3/4 × 4/9

    = 1/2 - 12/36

    = 1/2 - 1/3

    = 3/6 - 2/6

    = 1/6

    L = 1/5 - 3/5 × 1/6 + 1/2

    = 1/5 - 3/30 + 1/2

    = 2/10 - 1/10 + 5/10

    = 6/10

    M = ( 1/5 - 3/10 ) - ( 1/6 - 1/2 )

    = ( 2/10 - 3/10 ) - ( 1/6 - 3/6 )

    = - 1/10 - ( - 2/6 )

    = - 1/10 + 2/6

    = - 3/30 + 10/30

    = 7/30

  • Réponse :

    J= (1/2-3/4) * 4/9 = ((2-3)/4)* 4/9 = -1/4*4/9 = -1/9

    K= 1/2 - 3/4 * 4/9 = 1/2 - 3/9 = 1/2 - 1/3 = (3-2)/6 = 1/6

    L= 1/5 - 3/5 * 1/6 +1/2 = 1/5 -3 /30 +1/2 = 1/5 -1/10 +1/2 = (2-1 + 5)/10 = 6/10

    M = (1/5 - 3/10) - (1/6 -1/2) =  (2-3)/10) - (1-3)/6 = -1/10 +2/6 = (-3+10)/30 =7/30

    Explications étape par étape

Autres questions