document.write( "Question 1132142: Find the sum:\r
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Algebra.Com's Answer #749057 by ikleyn(52778) $\"\"$ $\"About$

You can put this solution on YOUR website!
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\n" ); document.write( "\n" ); document.write( "So, the question is:\r
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document.write( "    Find the sum   +  + \r\n" );
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document.write( "Use the identity   = ,   which gives you\r\n" );
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document.write( "                   = .   <<<---=== it is how to \"rationalize the fraction\" in this case (!)\r\n" );
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document.write( "In this way,\r\n" );
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document.write( " =  =               <<<---=== in this case a= 2;  b= 1.\r\n" );
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document.write( " =  = ;            <<<---=== in this case a= 3;  b= 2.\r\n" );
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document.write( " =  =            <<<---=== in this case a= 4;  b= 3.\r\n" );
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document.write( "So, the long sum of three fractions is equal to\r\n" );
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document.write( " +  +  = .      ANSWER\r\n" );
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