Question 58595: what does the comma mean between the two fractions? and how would i solve it?
64. 4/x-y , 5x/2y-2x
Answer by funmath(2933)   (Show Source):
You can put this solution on YOUR website! what does the comma mean between the two fractions? and how would i solve it?
64. 4/(x-y) , 5x/(2y-2x)
You can't solve this, the directions probably say something like find the lowest common denominator of the rational expressions.
To do that, factor both denominators:
4/(x-y), 5x/-2(-y+x)
4/(x-y),5x/-2(x-y)
The LCD is -2(x-y), it's the lowest polynomial that can be divided evenly by both denominators.
:
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.
-2*4/-2(x-y),5x/-2(x-y)
-8/-2(x-y),5x/-2(x-y)
:
If that wasn't one of the directions you were given let me know.
Happy Calculating!!!
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