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Published byMonique Buttler Modified over 2 years ago

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10.5 Addition and Subtraction with unlike denominators Steps: 1.Find a least common denominator (LCD) 2.Rename fractions 3.Add or subtract numerators

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REVIEW:

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How to get a LCD with RE 1.Factor the denominators 2.Take one of each factor –If there are duplicates take the one with the highest exponent

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Rename Fractions with LCD Compare the LCD to the denominator of each fraction Multiply the numerator and denominator of the fraction by a number or polynomial to make your denominator match your LCD

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Example 1

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Example 2:

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Example 3:

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Example 4:

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Example 5:

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Example 6:

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Example 7 You try! Raise your hand when you are done! First person done with the correct answer will earn a math buck!$$$

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Example 8 You try! Raise your hand when you are done! First person done with the correct answer will earn a math buck!$$$

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Example 9 You try! Raise your hand when you are done! First person done with the correct answer will earn a math buck!$$$

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Example 10 You try! Raise your hand when you are done! First person done with the correct answer will earn a math buck!$$$

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Example 11 You try! Raise your hand when you are done! First person done with the correct answer will earn a math buck!$$$

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Assignment: Page 448 (2-34) even

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