document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=749651>Question 749651</A>: <I><SPAN STYLE=\"word-break: break-all;\"> when is it necessary to find the least common denominator of two rational expressions? Describe the process for finding the LCD of two rational expressions.  How is factoring related to this process?<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 #456111 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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/cgi-bin/show-face.mpl?user=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=456111\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> when is it necessary to find the least common denominator of two rational expressions? <BR>\n" );
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document.write( "It isn't.<BR>\n" );
document.write( "You can add or subtract when the denominators are the same, a Common Denominator.<BR>\n" );
document.write( "It doesn't have to the the Least, as long as it's common.<BR>\n" );
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