Question 197119: Multiplying rational expressions, please help me simplify the expression:
5x+15 over 3x divided by x+3 over 9x
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! simplify the expression:
5x+15 over 3x divided by x+3 over 9x
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Invert the denominator and multiply to get:
[5x+15]/[3x] * [9x/(x+3)]
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Factor where you can:
[5(x+3)]/[3x] * [9x/(x+3)]
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Cancel factors common to a numerator and a denominator to get
such as 3, x, (x+3):
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[5/1] / [3/1]
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= 15
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Cheers,
Stan H.
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