SOLUTION: can u help me solve this? Subtract and simplify if possible: 6/5r^2 - 7/5r-5

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: can u help me solve this? Subtract and simplify if possible: 6/5r^2 - 7/5r-5      Log On


   

Question 460387: can u help me solve this?
Subtract and simplify if possible:
6/5r^2 - 7/5r-5
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Subtract and simplify if possible:
6/5r^2 - 7/5r-5
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[6/5r^2] - [7/(5(r-1)]
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least common denominator: 5r^2(r-1)
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Rewrite each fraction with the lcd as its denominator:
[6(r-1)/lcd] - [7r^2/lcd]
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Combine the numerators over the lcd:
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[-7r^2+6r-6]/[5r^2(r-1)]
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Cheers,
Stan H.
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