Fractions and Mixed Numbers: Addition and Subtraction 3 163 CHAPTER OUTLINE 3.1 Addition and Subtraction of Like Fractions 164 3.2 Least Common Multiple 171 3.3 Addition and Subtraction of Unlike Fractions 179 3.4 Addition and Subtraction of Mixed Numbers 189 Problem Recognition Exercises: Operations on Fractions and Mixed Numbers 199 3.5 Order of Operations and Applications of Fractions and Mixed Numbers 200 Group Activity: Card Games with Fractions 209 Chapter 3 In this chapter, we learn about addition and subtraction of fractions as well as operations on mixed numbers. Review Your Skills As we continue in this chapter, review some of the terms and vocabulary relating to fractions. Try the crossword puzzle to review these terms. Across 2. The top number of a fraction. 5. To divide two fractions, multiply the first fraction by the of the second fraction. 6. A fraction whose numerator is greater than or equal to the denominator is called . Down 1. The bottom number of a fraction. 3. A fraction whose numerator is less than the denominator is called . 4. A whole number greater than 1 that has only 1 and itself as factors is called a number. 1 2 3 4 5 6
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