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§ 2.8

§ 2.8. Adding and Subtracting Mixed Numbers and the Order of Operations. Example : Add. LCD = 6. Add the fractions first. Add the whole numbers. Adding Mixed Numbers. When adding mixed numbers, it is best to add the fractions together and then add the whole numbers together.

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§ 2.8

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  1. § 2.8 Adding and Subtracting Mixed Numbers and the Order of Operations

  2. Example: Add LCD = 6 Add the fractions first. Add the whole numbers. Adding Mixed Numbers When adding mixed numbers, it is best to add the fractions together and then add the whole numbers together.

  3. Example: Add LCD = 24 Subtract the fractions first. Subtract the whole numbers. Subtracting Mixed Numbers Subtracting mixed numbers is like adding mixed numbers.

  4. Example: Add LCD = 36 Subtracting Mixed Numbers

  5. Exponents Example: Evaluate Multiplication Order of Operations Order of Operations • Perform operations inside any parentheses. • Simplify any expressions with exponents. • Multiply or divide from left to right. • Add or subtract from left to right. Do first Do last

  6. Example: Evaluate Order of Operations Express division as multiplication. Multiply. Rewrite fractions using the LCD. Add and simplify.

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