Mathématiques

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URGENT !!! URGENT !!!!!! Bonsoir aider moi svp
URGENT !!! URGENT !!!!!! Bonsoir aider moi svp

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2 Réponse

  • A=(10-12)/15 = -2/15 

    B= -(60+112)/192= -172/192 = -43/48

    C=14/24 = 7/12

    D=(49-3)/7 = 46/7 

  • A = 2/3 - 4/5
    A = 10/15 - 12/15
    A = - 2/15
    B = -5/16 - 7/12
    B = -15/48 - 28/48
    B = - 43/48
    C = -5/24 + 12/24 - (-7/24)
    C = -5/24 + 12/24 + 7/24
    C = 14/24 = 7/12
     D = 7 - 3/7
    D = 49/7 - 3/7
    D = 46/7

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