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Published byTobias Stephens Modified over 4 years ago

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9.5 Addition, Subtraction, and Complex Fractions Do Now: Obj: to add and subtract rational expressions Remember: you need a common denominator!

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Ex 1:

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Ex 2: Needs a common denominator 1 st Sometimes it helps to factor the denominators to find your LCD. LCD: 3x 3 (2x+1)

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LCD: (x+3)(x+3)(x-3) HW:

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Do Now:

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Complex Fraction – a fraction with a fraction in the numerator and/or denominator. Such as: How would you simplify this complex fraction? Multiply the top by the reciprocal of the bottom!

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Steps to make complex fractions easier. 1.Condense the numerator and denominator into one fraction each. (if necessary) 2.Multiply the numerator by the denominator. 3.Simplify the remaining fraction.

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Ex 1:

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Ex 2:

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Ex 3:

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