document.write( "Question 458223: 7/4a^3b^2 - 5/3a^2b^3.\r
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Algebra.Com's Answer #314364 by MathLover1(20849) $\"\"$ $\"About$

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$\"7%2F4a%5E3b%5E2+-+5%2F3a%5E2b%5E3\"$ ....common denominator is $\"12a%5E3b%5E3\"$ \r
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\n" ); document.write( "\n" ); document.write( " $\"7%2A3b%2F12a%5E3b%5E3+-+5%2A4a%2F12a%5E3b%5E3\"$ \r
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\n" ); document.write( "\n" ); document.write( " $\"%2821b-+20a%29%2F12a%5E3b%5E3\"$ .....condition: $\"a\"$ and $\"b\"$ cannot be zero \n" ); document.write( "

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