Mathématiques

Question

3/5 fois 120 =
1/2+3/4=
8/9-4/9=

2 Réponse

  • 3/5 x 120 = 360/5 = 72

    1/2 + 3/4 = 2/4 + 3/4 =5/4

    8/9 - 4/9 = 4/9


  • 3/5 x 120
    = (3 x 120/5
    = 360/5
    = 72

    1/2 + 3/4 
    = (1 x 2)/(2 x 2) + 3/4
    = 2/4 + 3/4
    = 5/4

    8/9 - 4/9
    = 4/9

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