Finding average of denominator knowing average of numerator and average of fractionGood day to you all. I have a little problem I have been banging my head on for a while.I have come to think that it is impossible, but I hope you can save me.I have a fraction, n u m i d e n i ., which takes different values over time.The objective is to calculate a v e r a g e ( n u m i ) a v e r a g e ( d e n i ) I have at my disposal a v e r a g e ( n u m i d e n i ) and a v e r a g e ( n u m i )Is there any way to do this, or do I need to get a v e r a g e ( d e n i ) also?Thanks a lot for your help.Edit with an exampleLet's take 1 2 , 1 3 , 1 4 The information at my disposal is:The average of numerators is 1.The average of fractions is 0.36Is it possible with the information I have to retrieve the average of denominators?

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Finding average of denominator knowing average of numerator and average of fractionGood day to you all. I have a little problem I have been banging my head on for a while.I have come to think that it is impossible, but I hope you can save me.I have a fraction,             n      u              m        i                    d      e              n        i            ., which takes different values over time.The objective is to calculate             a      v      e      r      a      g      e      (      n      u              m        i            )              a      v      e      r      a      g      e      (      d      e              n        i            )      I have at my disposal   a  v  e  r  a  g  e  (            n      u              m        i                    d      e              n        i              ) and   a  v  e  r  a  g  e  (  n  u      m    i    )Is there any way to do this, or do I need to get   a  v  e  r  a  g  e  (  d  e      n    i    ) also?Thanks a lot for your help.Edit with an exampleLet&#039;s take       1    2    ,      1    3    ,      1    4  The information at my disposal is:The average of numerators is 1.The average of fractions is 0.36Is it possible with the information I have to retrieve the average of denominators?

robegarj · Accepted Answer

No, consider the example:  A  =  {            1      2        ,            1      3        ,            1      6        }  B  =  {            1      2        ,            1      4        ,            1      4        }We have the numerator average   1 and fraction average       1    3   for both cases yet average for denomiators are not the same.

kixEffinsoj · Accepted Answer

This is impossible.First case, consider the series       1    2    ,      2    6  .Then,   a  v  g  (  n  u  m  )  =      3    2    ,  a  v  g  (  d  e  n  )  =  4  ,  a  v  g  (  n  u  m      /    d  e  n  )  =      5    12   and   a  v  g  (  n  u  m  )      /    a  v  g  (  d  e  n  )  =      3    8  Second case, consider the series       2    4    ,      1    3  Then,   a  v  g  (  n  u  m  )  =      3    2    ,  a  v  g  (  d  e  n  )  =      7    2    ,  a  v  g  (  n  u  m      /    d  e  n  )  =      5    12   and   a  v  g  (  n  u  m  )      /    a  v  g  (  d  e  n  )  =      3    7  In both cases your two givens are the same, but the answer is different. Therefore you cannot find the answer from the givens.Edit: I see you got another answer that was both faster and better. Well done.

Finding average of denominator knowing average of numerator and average of fraction Good day to you

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