Mathématiques

Question

A= 2/5-1/3:3/4
B=(1+3/4)×(2/5-1/3)
C=(1-2/5-1/3)×3/4
merci

1 Réponse

  • A=2/5-1/3÷3/4
    A=2/5-4/9
    A=-2/45

    B=(1+3/4)×(2/5-1/3)
    = 7/4
    ×1/8
    =7/32
    C=(1-2/5-1/3)×3/4
    = 4/15
    ×3/4
    =12/60
    =1/5

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