document.write( "Question 322409: What is 8 divided by x-9 + 5 divided by x + 8 divided by x-9 + 5 divided by x. The question is the length of a rectangle is 8 divided by x-9 while it width is 5 divided by x. Find the perimeter. I have tried everything and can't find the LCD, \n" ); document.write( "
Algebra.Com's Answer #230811 by solver91311(24713)\"\" \"About 
You can put this solution on YOUR website!
\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "First simplify things by multiplying each of the length and width expressions by 2 and then you only have to add two fractions.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Your denominators are coprime, which is to say that they have no factors in common, therefore the LCD is simply the product of the two denominators, to wit . (It may be necessary, or simply aesthetic to multiply this out later on, but for now is a perfectly good representation of your LCD.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Multiply the entire sum by 1 in the form of the LCD divided by the LCD:\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Which can also be expressed as:\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "If you think that is prettier.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "John
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "
\n" );