document.write( "Question 146835: how would i do this? Combine the following fractions by addition or subtraction as directed \r
\n" ); document.write( "\n" ); document.write( "7 over xz + 2 over xy 4 over yz
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Algebra.Com's Answer #107238 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
Combine the following fractions by addition or subtraction as directed
\n" ); document.write( "7 over xz + 2 over xy 4 over yz
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\n" ); document.write( "(7/xz) + (2/xy) + (4/yz)\r
\n" ); document.write( "\n" ); document.write( "lcd = xyz\r
\n" ); document.write( "\n" ); document.write( "=(7y/xyz) + (2z/xyz) + (4x/xyz)\r
\n" ); document.write( "\n" ); document.write( "= (7y+2z+4x)/xyz
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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