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dybincka [34]
3 years ago
14

When adding and subtracting rationals, what should be the first thing you find? How do you find it?

Mathematics
1 answer:
MissTica3 years ago
5 0

Typically you should factor the denominators first, as it will make getting the least common multiple easier. For the first denominator, you can factor out x^2, the second denominator is a perfect square, (x^2+1) (x^2-1) and the last denominator is already simplified. It appears the denominators don't have a common factor though, so yes, you would have to multiply each of the denominators out.

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