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Math Help - simplify a complex fraction

  1. #1
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    simplify a complex fraction

    2 - 3
    b^2-1 ab-a
    3 - 2
    ab-a b^2 -1
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  2. #2
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    Quote Originally Posted by shawn9356 View Post
    2 - 3
    b^2-1 ab-a
    3 - 2
    ab-a b^2 -1
    Sorry but I find this unintelligible. Try coding it in latex:

    [tex]\frac{a}{b}[/tex] is the code for writing fractions: \frac{a}{b}.

    [tex]a^2[/tex] is the code for writing powers: a^2.

    And obviously fractions and powers get written [tex]\frac{a^2}{2 b^3}[/tex]: \frac{a^2}{2 b^3}.
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  3. #3
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    Quote Originally Posted by shawn9356 View Post
    2 - 3
    b^2-1 ab-a
    3 - 2
    ab-a b^2 -1
    I'm guessing this is supposed to be
    \frac{ \frac{2}{b^2 - 1} - \frac{3}{ab - a} }{ \frac{3}{ab - a} - \frac{2}{b^2 - 1} }

    But that seems kind of silly because
    \frac{ \frac{2}{b^2 - 1} - \frac{3}{ab - a} }{ \frac{3}{ab - a} - \frac{2}{b^2 - 1} } = \frac{ -\left ( \frac{3}{ab - a} - \frac{2}{b^2 - 1}  \right ) }{ \left ( \frac{3}{ab - a} - \frac{2}{b^2 - 1} \right ) } = -1

    -Dan
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