document.write( "Question 161326: can i have the correct answers on this problems as soon as possible plz.. tnx\r
\n" ); document.write( "\n" ); document.write( "1+2 over x divided by 7 over x\r
\n" ); document.write( "\n" ); document.write( "a over b divided by a- 5a over b\r
\n" ); document.write( "\n" ); document.write( "x-5 over x divided by 2-1 over x\r
\n" ); document.write( "\n" ); document.write( "x over 2- 2 over x divided by 1- 2 over x\r
\n" ); document.write( "\n" ); document.write( "5 over n+1 - 1 over 2 divided by n+3 \n" ); document.write( "
Algebra.Com's Answer #118828 by Edwin McCravy(20055)\"\" \"About 
You can put this solution on YOUR website!
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document.write( "I will use \"NUM\" to stand for \"numerator\" and \"DEN\" to\r\n" );
document.write( "stand for \"denominator\", so for instance, \"NUM1\" stands for \r\n" );
document.write( "the first numerator, \"DEN1\" stands for the first denominator,\r\n" );
document.write( "\"NUM2\" stands for the second numerator, etc.\r\n" );
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document.write( "Suppose your problem is of this type:\r\n" );
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document.write( "\"%28%28NUM1%2FDEN1%29%2B%28NUM2%2FDEN2%29%29%2F%28%28NUM3%2FDEN3%29%2B%28NUM4%2FDEN4%29%29\"\r\n" );
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document.write( "Get LCD of all denominators DEN1, DEN2, DEN3, and DEN4.\r\n" );
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document.write( "Form the fraction \"LCD%2F1\" and put it in parentheses\r\n" );
document.write( "\"%28LCD%2F1%29\"\r\n" );
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document.write( "Multiply all four fractions by \"%28LCD%2F1%29\"\r\n" );
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document.write( "Now every one of those denominators will cancel \r\n" );
document.write( "entirely into the LCD, and the end result will be\r\n" );
document.write( "much simpler, like this:\r\n" );
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document.write( "\"%28TERM1+%2B+TERM2%29%2F%28TERM3+%2B+TERM4%29\"\r\n" );
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document.write( "The smae principle works well regardless of how many fractions\r\n" );
document.write( "you have on top or bottom.\r\n" );
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document.write( "1+2 over x divided by 7 over x\r\n" );
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document.write( "\"%281%2B2%2Fx%29%2F++%287%2Fx%29++\"\r\n" );
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document.write( "Write the \"1\" as \"1%2F1\" so that\r\n" );
document.write( "everything will be a fraction, and put parentheses around\r\n" );
document.write( "every fraction:\r\n" );
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document.write( "\"%28%281%2F1%29%2B%282%2Fx%29%29%2F++%28%287%2Fx%29%29++\"\r\n" );
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document.write( "Get LCD of all denominators 1, x, and x.\r\n" );
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document.write( "Then LCD = x \r\n" );
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document.write( "Form the fraction \"x%2F1\" and put it in parentheses\r\n" );
document.write( "\"%28x%2F1%29\"\r\n" );
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document.write( "Multiply all three fractions by \"%28x%2F1%29\"\r\n" );
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document.write( "\"%28%28x%2F1%29%281%2F1%29%2B%28x%2F1%29%282%2Fx%29%29%2F++%28%28x%2F1%29%287%2Fx%29%29++\"\r\n" );
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document.write( "Now every one of those denominators will cancel \r\n" );
document.write( "entirely into the LCD, and the end result will be\r\n" );
document.write( "much simpler, like this:\r\n" );
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document.write( "and that is simply:\r\n" );
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document.write( "\"%28x%2B2%29%2F7\"\r\n" );
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document.write( "-------------------------\r\n" );
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document.write( "a over b divided by a- 5a over b \r\n" );
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document.write( "\"%28a%2Fb%29%2F%28a-%285a%29%2Fb%29\"\r\n" );
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document.write( "Write the \"a\" as \"a%2F1\" so everything will\r\n" );
document.write( "be a fraction and put parentheses around everything:\r\n" );
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document.write( "\"%28%28a%2Fb%29%29%2F%28%28a%2F1%29-%28%285a%29%2Fb%29%29\"\r\n" );
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document.write( "Get LCD of all denominators \"b\", \"1\", and \"b\".\r\n" );
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document.write( "Form the fraction \"b%2F1\" and put it in parentheses\r\n" );
document.write( "\"%28b%2F1%29\"\r\n" );
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document.write( "Multiply all four fractions by \"%28b%2F1%29\"\r\n" );
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document.write( "\"%28%28b%2F1%29%28a%2Fb%29%29%2F%28%28b%2F1%29%28a%2F1%29-+%28b%2F1%29%285a%2Fb%29+%29\"\r\n" );
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document.write( "Now every denominator will cancel \r\n" );
document.write( "entirely into the LCD, and the end result will be\r\n" );
document.write( "much simpler, like this:\r\n" );
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document.write( "which is simply\r\n" );
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document.write( "\"a%2F%28ba-5a%29\"\r\n" );
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document.write( "Now we can factor out \"a\" on the bottom:\r\n" );
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document.write( "\"a%2F%28a%28b-5%29%29\"\r\n" );
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document.write( "Now the \"a\"'s will cancel, leaving a \"1\" on top:\r\n" );
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document.write( "   \"1\"\r\n" );
document.write( "\"cross%28a%29%2F%28cross%28a%29%28b-5%29%29\"\r\n" );
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document.write( "Answer:  \"1%2F%28b-5%29\"\r\n" );
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document.write( "If I have time I'll come back and do the others.\r\n" );
document.write( "But they're all done the same way.\r\n" );
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document.write( "Edwin
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