document.write( "Question 1197326: If $\"%283%2F7%29%2B%287%2F12%29=%281%2FN%29\"$ , what is the value of N? \n" ); document.write( "

Algebra.Com's Answer #830549 by MathLover1(20849) $\"\"$ $\"About$

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\n" ); document.write( "\n" ); document.write( " $\"%283%2F7%29%2B%287%2F12%29=%281%2FN%29\"$ \r
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\n" ); document.write( "\n" ); document.write( " $\"%283%2A12%29%2F%287%2A12%29%2B%287%2A7%29%2F%2812%2A7%29=%281%2FN%29\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"36%2F84%2B49%2F84=%281%2FN%29\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"85%2F84=%281%2FN%29\"$ ................cross multiply\r
\n" ); document.write( "\n" ); document.write( " $\"85N=1%2A84\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"N=84%2F85\"$ \n" ); document.write( "

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