Mathématiques

Question

A= 1/5 + 4/5
B=3/4 - 2/8
C=3/5 -2
svp urgent

1 Réponse

  • A = 1/5 + 4/5
       = 1+4 /5
       = 5/5
    A = 1

    B = 3/4 - 2/8
       = 3×2 / 4×2 - 2/8
       = 6/8 - 2/8
       = 4/8
    B = 1/2

    C = 3/5 - 2
       = 3 -2×5 / 5
       = 3-10 / 5
    C = -7/5

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