document.write( "Question 58595: what does the comma mean between the two fractions? and how would i solve it?\r
\n" ); document.write( "\n" ); document.write( "64. 4/x-y , 5x/2y-2x \n" ); document.write( "

Algebra.Com's Answer #40198 by funmath(2933) $\"\"$ $\"About$

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what does the comma mean between the two fractions? and how would i solve it?\r
\n" ); document.write( "\n" ); document.write( "64. 4/(x-y) , 5x/(2y-2x)
\n" ); document.write( "You can't solve this, the directions probably say something like find the lowest common denominator of the rational expressions.
\n" ); document.write( "To do that, factor both denominators:
\n" ); document.write( "4/(x-y), 5x/-2(-y+x)
\n" ); document.write( "4/(x-y),5x/-2(x-y)
\n" ); document.write( "The LCD is -2(x-y), it's the lowest polynomial that can be divided evenly by both denominators.
\n" ); document.write( ":
\n" ); document.write( "If the directions say, give the rational expressions a common denominator, whatever you do to the denominator to get that denominator you must do to the numerator.
\n" ); document.write( "-2*4/-2(x-y),5x/-2(x-y)
\n" ); document.write( "-8/-2(x-y),5x/-2(x-y)
\n" ); document.write( ":
\n" ); document.write( "If that wasn't one of the directions you were given let me know.
\n" ); document.write( "Happy Calculating!!! \n" ); document.write( "

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