document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=206920>Question 206920</A>: <I><SPAN STYLE=\"word-break: break-all;\"> why it is OK to remove the denominator by multiplying both sides by the LCD and why can you not do the same operation when simplifying a rational expression? <BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #156468 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=156468\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> why it is OK to remove the denominator by multiplying both sides by the LCD and why can you not do the same operation when simplifying a rational expression? \r<BR>\n" );
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document.write( "When you multiply thru the equation each of the denominators is canceled<BR>\n" );
document.write( "because the LCD contains all the factors of each of the denominators.<BR>\n" );
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document.write( "A rational expression can be simplified only if numerator and denominator<BR>\n" );
document.write( "contain a common factor which can be canceled.<BR>\n" );
document.write( "There are no equal sides to be multiplied.<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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