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Published byAlvin Richards Modified over 8 years ago

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Warm Up: Find the Least Common Denominator (LCM)

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9-5 Addition, Subtraction, and Complex Fractions

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Ex 1: Perform the indicated operation a. b. Note: In order to add or subtract 2 fractions, we must have the SAME DENOMINATOR.

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Ex 2: Find the LCD a. b. Ask yourself: Do the denominators have any factors in common? In this example, there are no common factors. (You can leave it “unsimplified.”) Factor! Note: Use ALL of the factors!

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Ex 3: Perform the indicated operation, then simplify Frist: Find the LCD Multiply each fraction by the factors it doesn’t already have.

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Ex 4: Perform the indicated operation and simplify.

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Exit Slip: Perform the indicated operation and simplify.

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