document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1143269>Question 1143269</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 3/4-1/2 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #764062 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=764062\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 3/4-1/2<BR>\n" );
document.write( "----<BR>\n" );
document.write( "For problems like this with 2 terms:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a%2Fb+-+c%2Fd+=+%28ad+-+bc%29%2Fbd ALIGN=MIDDLE  ALT=\"a%2Fb+-+c%2Fd+=+%28ad+-+bc%29%2Fbd\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "---<BR>\n" );
document.write( "---> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%283%2A2+-+4%2A1%29%2F%284%2A2%29+=+%286-4%29%2F8+=+2%2F8+=+1%2F4 ALIGN=MIDDLE  ALT=\"%283%2A2+-+4%2A1%29%2F%284%2A2%29+=+%286-4%29%2F8+=+2%2F8+=+1%2F4\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "----------<BR>\n" );
document.write( "I remember the LCD, Least Common Denominator from grade school.<BR>\n" );
document.write( "It's a waste of time.<BR>\n" );
document.write( "It's not relevant to this example, but is for some other problems.<BR>\n" );
document.write( "-----<BR>\n" );
document.write( "For example:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3%2F4+%2B+1%2F3+%2B+5%2F6 ALIGN=MIDDLE  ALT=\"3%2F4+%2B+1%2F3+%2B+5%2F6\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "The LCD is 12, but there's no good reason to waste time finding it.<BR>\n" );
document.write( "Use the product of the 3 DENs': 4*3*6 = 72<BR>\n" );
document.write( "--> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=54%2F72+%2B+24%2F72+%2B+60%2F72+=+138%2F72 ALIGN=MIDDLE  ALT=\"54%2F72+%2B+24%2F72+%2B+60%2F72+=+138%2F72\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Then reduce.<BR>\n" );
document.write( "= <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=23%2F12 ALIGN=MIDDLE  ALT=\"23%2F12\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "-----------<BR>\n" );
document.write( "Another example:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=4%2Fa+%2B+b%2Fc+%2B+5%2Fac ALIGN=MIDDLE  ALT=\"4%2Fa+%2B+b%2Fc+%2B+5%2Fac\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Use the product:  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a%2Ac%2Aac+=+a%5E2c%5E2 ALIGN=MIDDLE  ALT=\"a%2Ac%2Aac+=+a%5E2c%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "---> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%284ac%5E2+%2B+b%2Aa%5E2c+%2B+5ac%29%2Fa%5E2c%5E2 ALIGN=MIDDLE  ALT=\"%284ac%5E2+%2B+b%2Aa%5E2c+%2B+5ac%29%2Fa%5E2c%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "= <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%284ac%5E2+%2B+a%5E2bc+%2B+5ac%29%2Fa%5E2c%5E2 ALIGN=MIDDLE  ALT=\"%284ac%5E2+%2B+a%5E2bc+%2B+5ac%29%2Fa%5E2c%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "= <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%284ac+%2B+a%5E2b+%2B+5a%29%2Fa%5E2c ALIGN=MIDDLE  ALT=\"%284ac+%2B+a%5E2b+%2B+5a%29%2Fa%5E2c\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "= <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%284c+%2B+ab+%2B+5%29%2Fac ALIGN=MIDDLE  ALT=\"%284c+%2B+ab+%2B+5%29%2Fac\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "=================<BR>\n" );
document.write( "Using the product and reducing the result takes less time than finding the LCD in most cases.<BR>\n" );
document.write( "IDK why schools and texts persist with the LCD.<BR>\n" );
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