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Topic: Operations with algebraic fractions assistance please
Replies: 2   Last Post: Jan 30, 2012 8:33 AM

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George Ivey

Posts: 9
From: here
Registered: 1/30/12
Re: Operations with algebraic fractions assistance please
Posted: Jan 30, 2012 8:27 AM
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Actually neither of those is very clear. Since this board does not implement LaTeX, use parentheses.

I think you mean 5/x+ (6/x^2)/(25/x^2)- 35/x.

The "complex fraction" (6/x^2)/(25/x^2), which has the fraction 6/x^2 in the numerator and 25/x^2 in the denominator, is interpreted as "divide 6/x^2 by 25/x^2". And you divide fractions by "invert the denominator and multiply": (6/x^2)(x^2/25) The two x^2 terms cancel leaving 6/25.

Now, can you find 5/x+ 6/25- 35/x? The "least common denominator" is 25x.

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