10.5 Addition and Subtraction with unlike denominators Steps: Find a least common denominator (LCD) Rename fractions Add or subtract numerators
REVIEW:
How to get a LCD with RE Factor the denominators Take one of each factor If there are duplicates take the one with the highest exponent
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 7 You try! Raise your hand when you are done! First person done with the correct answer will earn a math buck!$$$
Example 8 You try! Raise your hand when you are done! First person done with the correct answer will earn a math buck!$$$
Example 9 You try! Raise your hand when you are done! First person done with the correct answer will earn a math buck!$$$
Example 10 You try! Raise your hand when you are done! First person done with the correct answer will earn a math buck!$$$
Example 11 You try! Raise your hand when you are done! First person done with the correct answer will earn a math buck!$$$
Assignment: Page 448 (2-34) even