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Calculus/simplifying fractions where with x (x is to the power of -1 or less)


Johan wrote at 2013-01-14 07:05:40
    a       b       ad+cd

4.  ---  +  ---  !=  --------

    c       d          cd

A     B     AD + BC

-  +  -  =  -------

C     D       CD


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