document.write( "Question 511772: simplify the expression : (15x+21)/(9x+15)
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document.write( "*look for an integer factor thats common to numerator and denomenator\r
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document.write( "seperate the numerator and denomenator into sections: 15x/9x + 21/15
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document.write( " find a common denomenator therefore, 15x/9x * (15/15) and 21/15* (9x/9x); now add together\r
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document.write( "225x+189x/135x = 364x/135\r
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document.write( "anyways, i tried this but it did not give me the right solution. any insight? \n" );
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Algebra.Com's Answer #342392 by John10(297)![]() ![]() You can put this solution on YOUR website! You can not simplify like the way that you did. You have to factor the numerator and denominator separately as below: \n" ); document.write( "15x + 21 = 3(5x + 7) \n" ); document.write( "9x + 15 = 3(3x + 5) \n" ); document.write( "To simplify: just cancel out the constant term \"3\" from the denominator and numerator. \n" ); document.write( "So (15x + 21)/(9x + 15) = (5x + 7)/(3x + 5) \n" ); document.write( "John10:) \n" ); document.write( " |