Mathématiques

Question

13 - 45  + 2 =                  
10   100

3 - 11 =
    30   5
 

39+5 =
20-9

12.6
0.18  =


14 - (1-1)1 
30   (5-6)   10

2 Réponse

  • 1. 285/100 = 57/20           
    2. 95/30 = 19/6
    3. 434/11
    4. 70
    5. 11/30

  • 13/10-45/100+2
    =130/100-45/100+200/100
    =285/100

    3-1/30+1/5
    =90/30-1/30+6/30
    =95/30

    (39+5)/(20-9)
    =44/11
    =4

    12.6/0.18
    =1260/18
    =420/6
    =70

    14/30-(1/5-1/6)-1/10
    =14/30-(6/30-5/30)-3/30
    =14/30-1/30-3/30
    =10/30
    =1/3

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