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11-7 Rational Expressions with Unlike Denominators Algebra 1 Glencoe McGraw-HillLinda Stamper

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As with fractions, to add or subtract rational expressions with unlike, or different denominators, you must rewrite with a common denominator before adding or subtracting.

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You must place the subtracted quantity in parentheses! The problem. Write the denominators as prime factors. Multiply numerator and denominator by factors needed to create a common denominator. Multiply to write the expression with a common denominator. Simplify.

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You must place the subtracted quantity in parentheses! The problem. Write the denominators as factors. Multiply numerator and denominator by factors needed to create a common denominator. Multiple to write the expression with a common denominator. Simplify.

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Write in simplest form. Example 1 Example 2

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Example 3 Write in simplest form. Example 4

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Example 5 Write in simplest form. Example 6

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Example 7 Write in simplest form.

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11-A6 Page 617-619 # 22–39,43-46,57,64-65.

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