Mathématiques

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Bonjour,pouvez vous m’aider svp merci d’avance :)
Bonjour,pouvez vous m’aider svp merci d’avance :)

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1 Réponse

  • Réponse :

    Explications étape par étape

    Bonjour

    H = -2/7 + 3/14

    H = (-2 x 2)/(2 x 7) + 3/14

    H = -4/14 + 3/14

    H = -1/14

    J = -5/21 - 7/3

    J = -5/21 - (7 x 7)/(3 x 7)

    J = -5/21 - 49/21

    J = -54/21

    J = -(18 x 3)/(7 x 3)

    J = -18/7

    G = -5 + 6/-5

    G = -(5 x 5)/5 - 6/5

    G = -25/5 - 6/5

    G = -31/5

    K = 1/17 - 5/51

    K = 3/(3 x 17) - 5/51

    K = 3/51 - 5/51

    K = -2/51

    U = 7/4 - (-1/8 - 3/10)

    U = 7/4 - (-5/40 - 12/40)

    U = 7/4 - (-17/40)

    U = 7/4 + 17/40

    U = 70/40 + 17/40

    U = 87/40

    W = 3/4 - (-5/12 - 1/3)+ (-2 - 1/6)

    W = 3/4 - (-5/12 - 4/12) + (-12/6 - 1/6)

    W = 3/4 - (-9/12) - 13/6

    W = 3/4 + 3/4 - 13/6

    W = 9/12 + 9/12 - 26/12

    W = 18/12 - 26/12

    W = -8/12

    W = -2/3

    R = 2/3 - (-7/4) - 1/5

    R = 2/3 + 7/4 - 1/5

    R = 40/60 + 105/60 - 12/60

    R = 145/60 - 12/60

    R = 133/60

    P = -11 + 1/11 + 1/6 - 6

    P = -17 + 6/66 + 11/66

    P = -17 + 17/66

    P = -1122/66 + 17/66

    P = -1105/66

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