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Simplify Fraction with same term in Num and Dem, but.

  1. Oct 9, 2013 #1
    1. The problem statement, all variables and given/known data
    I'm having a brain fart, how do you factor/simplify a fraction such as [itex]\frac{ab}{ab+cd}[/itex]
    I keep thinking multiply by ab-bc but I'm not sure.
     
    Last edited: Oct 9, 2013
  2. jcsd
  3. Oct 9, 2013 #2

    Dick

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    Uh, the terms in the denominator have common factor b. Why don't you factor it out?
     
  4. Oct 9, 2013 #3
    I'm sorry I miss typed it after using latex format. It's suppose to be DC not BC.
     
  5. Oct 10, 2013 #4

    Dick

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    Then I don't think there is any form that is terribly much simpler than what you written. You can change the form, like to 1/(1+(cd)/(ab)), but I don't think the alternate forms are much simpler.
     
  6. Oct 10, 2013 #5
    Thank you! This actually does. I should of stated I'm doing transfer functions for circuit design and thats the type of form desired. Thank you!
     
  7. Oct 10, 2013 #6

    Dick

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    Ok, so I helped by accident. You're welcome!
     
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