Mathématiques

Question

Bonjour, On donne x=5sur6 y=-1sur24 et z=-7sur12 calculer les expression suivante A=x+y+z B=x-y+z C=x-(y+z)

1 Réponse

  • Bonjour

    A=x+y+z

    = 5/6 -1/24 -7/12

    = 20/24 -1/24 -14/24

    = 5/24

    B=x-y+z

    = 5/6-(-1/24) -7/12

    = 5/6 + 1/24 -7/12

    = 20/24 + 1/24 -14/24

    = 7/24


    C=x-(y+z)

    = 5/6 -( -1/24-7/12)

    = 5/6 -(-1/24 -14/24)

    = 5/6 -(-15/24)

    = 5/6 + 15/24

    = 20/24 + 15/24

    = 35/24

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