Mathématiques

Question

bonjour,je n'arrive pas resoudre cette expressions numerique
A= 4sur7 - 3sur2 x (1-5sur3)

2 Réponse

  • A= 4/7 - 3/2 x (1 - 5/3)
    A= 4/7 - 3/2 x (3/3 - 5/3)
    A= 4/7 - 3/2 x (- 2/3)
    A= 4/7 + 6/6
    A= 4/7 + 1
    A= 4/7 + 7/7
    A= 11/7
  • A = 4/7 - 3/2 x (1 - 5/3)
    A = 4/7 - 3/2 x (1 x 3 / 1 x 3 - 5/3)
    A = 4/7 - 3/2 x (3/3 - 5/3)
    A = 4/7 - 3/2 x (- 2/3)
    A = 4/7 + 6/6
    A = 4 x 6 / 7 x 6 + 6 x 7 / 6 x 7
    A = 24/42 + 42/42
    A = 66/42
    A = 6 x 11 / 6 x 7
    A = 11/7

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