document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=258846>Question 258846</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Hi, I'm trying to help my son with this problem.  My answer was 23/30 is that correct?\r<BR>\n" );
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document.write( "Simplify: 2/3 +3/10 -2/5<BR>\n" );
document.write( "2/3 + 3/10 = 11/30  then that minus 2/5?  When I did it on an online math calculator, it said the answer is 17/30.  I don't understand how that can be?\r<BR>\n" );
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document.write( "Thanks for your help!  :) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #190549 by </B><A HREF=/tutors/aboutme.mpl?userid=Fombitz><B>Fombitz(32388)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Fombitz><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=Fombitz><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=190549\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Whenever you have fractions, you need a common denominator. <BR>\n" );
document.write( "In this case 30 will work. It's also the least common denominator. <BR>\n" );
document.write( "Convert each to a fraction with a denominator of 30.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%282%2F3%29%2810%2F10%29=20%2F30 ALIGN=MIDDLE  ALT=\"%282%2F3%29%2810%2F10%29=20%2F30\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%283%2F10%29%283%2F3%29=9%2F30 ALIGN=MIDDLE  ALT=\"%283%2F10%29%283%2F3%29=9%2F30\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%282%2F5%29%286%2F6%29=12%2F30 ALIGN=MIDDLE  ALT=\"%282%2F5%29%286%2F6%29=12%2F30\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "So then<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%282%2F3%29%2B%283%2F10%29-%282%2F5%29=20%2F30%2B9%2F30-12%2F30 ALIGN=MIDDLE  ALT=\"%282%2F3%29%2B%283%2F10%29-%282%2F5%29=20%2F30%2B9%2F30-12%2F30\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%282%2F3%29%2B%283%2F10%29-%282%2F5%29=%2820%2B9-12%29%2F30 ALIGN=MIDDLE  ALT=\"%282%2F3%29%2B%283%2F10%29-%282%2F5%29=%2820%2B9-12%29%2F30\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%282%2F3%29%2B%283%2F10%29-%282%2F5%29=17%2F30 ALIGN=MIDDLE  ALT=\"%282%2F3%29%2B%283%2F10%29-%282%2F5%29=17%2F30\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( " </SPAN>\n" );
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