Mathématiques

Question

j'ais besoin d'aide
3/2 fois 26 =?
2/3 fois 33 =?
20/10 fois 9 =?
8/5fois15=?
3/4foi40=?
11/24fois6=?
11/6fois9=?
5/4fois2=?
5/3fois2,4=?
5/7fois2,8=?

2 Réponse

  • Bonjour,

    PENSES À LA POLITESSE LA PROCHAINE FOIS STP ! MERCI

    3/2 x 26 = 26/2 x 3 = 39
    2/3 x 33 = 33/3 x 2 = 22
    20/10 x 9 = 2 x 9 = 18
    8/5 x 15 = 15/5 x 8 = 3 x 8 = 24
    3/4 x 40 = 40/4 x 3 = 10 x 3 = 30
    11/24 x 6 = 6/24 x 11 = 1/4 x 11 = 11/4
    11/6 x 9 = 9/6 x 11 = 3/2 x 11 = 33/2
    5/4 x 2 = 2/4 x 5 = 1/2 x 5 = 5/2
    5/3 x 2,4 = 2,4/3 x 5 = 24/30 x 5 = 5/30 x 24 = 1/6 x 24 = 24/6 = 4
    5/7 x 2,8 = 28/70 x 5 = 4/10 x 5 = 5/10 x 4 = 1/2 x 4 = 4/2 = 2
  • Bonjour,

    3/2 × 26 =  3 × 26 ÷ 2 = 78 ÷ 2 = 39

    2/3 × 33 =  2 × 33 ÷ 3 = 66 ÷ 3 = 22

    20/10 × 9 = 20 × 9 ÷ 10 = 180 ÷ 10 = 18

    8/5 × 15 = 8 × 15 ÷ 5 = 120 ÷ 5 = 24

    3/4 × 40 = 3 × 40 ÷ 4 = 120 ÷ 4 = 30

    11/24 × 6 = 11 × 6 ÷ 24 = 66 ÷ 24 = 2,75 

    11/6 × 9 = 11 × 9 ÷ 6 = 99 ÷ 6 = 16,5

    5/4 × 2 = 5 × 2 ÷ 4 = 10 ÷ 4 = 2,5

    5/3 × 2,4 = 5 × 2,4 ÷ 3 = 12 ÷ 3 = 4

    5/7 × 2,8 = 5 × 2,8 ÷ 7 = 14 ÷ 7 =

    En espérant t'avoir aidé(e) ! ^^ 

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