document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=879616>Question 879616</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Simplify the expression.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%2810%2F%28%285%2F7%29%2B%282%2F9%29%29%29 ALIGN=MIDDLE  ALT=\"%2810%2F%28%285%2F7%29%2B%282%2F9%29%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > <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 #530932 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39630)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><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=530932\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The main denominator has two other denominators of 7 and 9.  Multiply the entire complex fraction by <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1=%287%2A9%29%2F%287%2A9%29 ALIGN=MIDDLE  ALT=\"1=%287%2A9%29%2F%287%2A9%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >, and simplify from that.\r<BR>\n" );
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document.write( "Multiplication by 1 does not change the meaning of the number.  Multiplying a fraction by a lowest common denominator will clear the denominators.\r<BR>\n" );
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document.write( "That means, form this:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%2810%2F%28%285%2F7%29%2B%282%2F9%29%29%29%28%287%2A9%29%2F%287%2A9%29%29 ALIGN=MIDDLE  ALT=\"%2810%2F%28%285%2F7%29%2B%282%2F9%29%29%29%28%287%2A9%29%2F%287%2A9%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >, and simplify the result from there. </SPAN>\n" );
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