document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=535931>Question 535931</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How do I find a common denominator and simplify for 2/15x - 4/21x^2?\r<BR>\n" );
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document.write( "The answer says it's 2(7x-10)/105x^2 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #352042 by </B><A HREF=/tutors/aboutme.mpl?userid=richwmiller><B>richwmiller(17219)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=richwmiller><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=richwmiller><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=352042\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 3*5=15<BR>\n" );
document.write( "3*7=21<BR>\n" );
document.write( "3*5*7=105<BR>\n" );
document.write( "multiply 2/15x by 7x/7x<BR>\n" );
document.write( "14x/105x^2<BR>\n" );
document.write( "multiply -4/21x^2 by 5<BR>\n" );
document.write( "-20/105x^2<BR>\n" );
document.write( "(14x-20)/105x^2<BR>\n" );
document.write( "factor out 2 in the numerator<BR>\n" );
document.write( "2*(7x-10)/105x^2 </SPAN>\n" );
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