(4 13/18-3 7...

Тема в разделе "Математика", создана пользователем PAVLIK_MOROZOV, 30 янв 2010.

  1. PAVLIK_MOROZOV

    PAVLIK_MOROZOV New Member

    (4 13/18-3 7 /9)*(1/2-4/17)
     
    PAVLIK_MOROZOV, 30 янв 2010
    #1
  2. natasha.filosof

    natasha.filosof New Member

    (4 13/18-3 7 /9)*(1/2-4/17) = 19/68


                                                                  13*1 - 7*2
    (4 13/18-3 7 /9) = (4-3)+(13/18-7/9)= 1 + ------------------------ = 1+1/18= 1 1/18
                                                                         18
                            1*17 - 4*2                   17 - 8              9
    (1/2-4/17) = ----------------------------- = ------------------- = -------------
                                   34                         34               34


    1 1/18 * 9/34 = 19/18 * 9/34 = 19/68
     
    natasha.filosof, 30 янв 2010
    #2

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