Mathématiques

Question

Bonjour. Je ne trouve pas la réponse à cet exercice.

Calculer : E = -4/9 x 8 F = 8/9 x -2 x 3 G = -15/16 x 12/35 H = -4/21 x 9/-12 x 28/27

4ème

1 Réponse

  • Bonsoir,

    Calculer :

    E = -4/9 x 8

    E = - 32/9

    F = 8/9 x -2 x 3

    F = - 16/9 x 3

    F = - 48/9

    F = (3 x - 16) / (3 x 3)

    F = - 16/3

    G = -15/16 x 12/35

    G = - 180/560

    G = (20 x - 9) / (20 x 28)

    G = - 9/28

    H = -4/21 x 9/-12 x 28/27

    H = 36/252 x 28/27

    H = 1 008/6 804

    H = (252 x 4) / (252 x 27)

    H = 4/27.

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