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Devoir de math svp merci d'avance
Devoir de math svp merci d'avance

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  • Bonjour,


    a. - 2/5 x - 5/2 = 10/10 = 1

    b. b. 4/3 x - 3/2 = - 12/6 = (6 x - 2) / (6 x 1) = - 2

    c. 1/2 x 8/5 x 10/4 = 8/10 x 10/4 = 80/40 = (40 x 2) / (40 x 1) = 2

    d. - 5/6 x 12/5 x 11/2 = 60/30 x 11/2 = 2 x 11/2 = 22/2 = (2 x 11) / (2 x 1) = 11

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