Mathématiques

Question

a.18×2 troisièmes
b.28 septièmes ×5
c.6×13 centièmes

2 Réponse

  • 18 x 2/3
    = (18 x 2)/3
    = 36/3
    = 12

    28/7 x 5
    = 4 x 5
    = 20

    6 x 13/100
    = (6 x 13)/100
    = 78/100
    = 0,78
  • 18 x2/3 = 36/3 =12

    28/7 x5 = 140/7 = 20

    6 x 13/100 = 98/100 = 49/50

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