document.write( "Question 1183337: combine into a single fraction\r
\n" ); document.write( "\n" ); document.write( "5/x minus 7/(y+1)\r
\n" ); document.write( "\n" ); document.write( "help please \n" ); document.write( "
Algebra.Com's Answer #813589 by Edwin McCravy(20056)\"\" \"About 
You can put this solution on YOUR website!
\r\n" );
document.write( "\"5%2Fx\"\"%22%22-%22%22\"\"7%2F%28y%2B1%29\"\r\n" );
document.write( "\r\n" );
document.write( "The LCD is the product of the two denominators, x(y+1)\r\n" );
document.write( "So we multiply both fractions by \"%28x%28y%2B1%29%29%2F%28x%28y%2B1%29%29\" which just \r\n" );
document.write( "equals 1 and thus will not change the value when we \r\n" );
document.write( "multiply both fractions by it:\r\n" );
document.write( "\r\n" );
document.write( "\"expr%28%28x%28y%2B1%29%29%2F%28x%28y%2B1%29%29%29%2Aexpr%285%2Fx%29\"\"%22%22-%22%22\"\"expr%28%28x%28y%2B1%29%29%2F%28x%28y%2B1%29%29%29expr%287%2F%28y%2B1%29%29\"\r\n" );
document.write( "\r\n" );
document.write( "Then we cancel away each original denominator, leaving\r\n" );
document.write( "only the least common denominator in each:\r\n" );
document.write( "\r\n" );
document.write( "\"expr%28%28cross%28x%29%28y%2B1%29%29%2F%28x%28y%2B1%29%29%29expr%285%2Fcross%28x%29%29\"\"%22%22-%22%22\"\r\n" );
document.write( "\r\n" );
document.write( "Write as one fraction over the least common denominator\r\n" );
document.write( "\r\n" );
document.write( "\"%285%28y%2B1%29-7x%29%2F%28x%28y%2B1%29%29\"\r\n" );
document.write( "\r\n" );
document.write( "Remove the parentheses in the top. But not in the bottom\r\n" );
document.write( "because the bottom is completely factored but the top is \r\n" );
document.write( "not.\r\n" );
document.write( "\r\n" );
document.write( "\"%285y%2B5-7x%29%2F%28x%28y%2B1%29%29\"\r\n" );
document.write( "\r\n" );
document.write( "Edwin
\n" ); document.write( "
\n" );