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Published byOlivia Tucker Modified over 5 years ago

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Sums and Differences of Rational Expressions Putting factoring skills to use again (7.8)

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POD #1 Return to a previous skill. Then try this one.

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POD #2 Multiply and simplify. Then try this one.

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Adding and subtracting fractions How would you add these fractions? What is the difference between them? What is the most important thing to consider when adding and subtracting fractions?

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With this in mind Add these rational expressions. Simplify the final result.

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Careful about those common denominators! Try this.

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Yesterday’s trick Can you remember how we approached this last time? Once we do that, let’s mix it up.

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Sometimes it’s easier to… … simplify before adding. Change it up.

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Sometimes we need to… …combine terms then cancel. We do that in the numerator here.

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