document.write( "Question 749119: (x^-1+y^-1)^-1\r
\n" ); document.write( "\n" ); document.write( "I am unsure of how I am supposed to finish this problem. I flipped it becaues of the negative exponent and ended up with x^-1+y^-1/1 and then flipped it again because of the negative exponents on x and y. And ended up with 1/2x and 1/2y. I Don't recall in our lesson seeing problems with negative exponents on the inside and outside so I just figured you would keep flipping them til they were gone. I have a feeling that is incorrect. \n" ); document.write( "

Algebra.Com's Answer #455791 by josgarithmetic(39633) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"%28x%5E-1%2By%5E-1%29%5E-1=1%2F%28x%5E-1%2By%5E-1%29=1%2F%28%281%2Fx%29%2B%281%2Fy%29%29\"$ \r
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\n" ); document.write( "\n" ); document.write( "At the lower level, focus on the main denominator. Lowest Common Denominator of the main denominator is xy. Try this: Multiply the whole complex fraction by $\"%28xy%29%2F%28xy%29\"$ . That should give you something which simplifies neatly into a noncomplex fraction.\r
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\n" ); document.write( "\n" ); document.write( " $\"%281%2F%28%281%2Fx%29%2B%281%2Fy%29%29%29%2A%28%28xy%29%2F%28xy%29%29\"$
\n" ); document.write( " $\"xy%2F%28xy%2Fx%2Bxy%2Fy%29\"$
\n" ); document.write( " $\"highlight%28xy%2F%28y%2Bx%29%29\"$ \n" ); document.write( "

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