10 Chapter 1 The Set of Real Numbers Multiplying Fractions Multiply the fractions: Solution: Multiply the numerators. Multiply the denominators. 1 4 Notice that the product represents a quantity that is of . Taking of a quantity is equivalent to dividing the quantity by 4. One-half of a pie divided into four pieces leaves pieces that each represent of the pie (Figure 1-3). Skill Practice Multiply. 5. Multiplying Fractions Example 5 Multiply the fractions. a. b. c. Solution: a. Multiply the numerators. Multiply the denominators. Divide out the common factors. Multiply. b. c. The whole number 5 can be written as 1 3 5 . Divide out the common factors and multiply. Skill Practice Multiply. 6. 7. 8. 10 1 10 4 5 5 4 8 9 3 4 5 1 1 1 51 1 1 1 51 1 5 5 1 1 5 Multiply 1 1 1. 2 13 13 2 2 13 13 2 2 1 13 13 1 21 1 1 1 Multiply 1 1 1. 3 4 7 1 15 10 2 14 2 7 10 15 14 7 15 10 14 5 1 5 2 13 13 2 7 10 15 14 2 7 3 4 18 14 1 2 1 4 1 4 12 1 4 1 2 1 1 4 2 1 8 1 2 Example 4 Figure 1-3 TIP: The same result can be obtained by dividing out common factors before multiplying. 3 15 14 2 3 4 7 1 10 2 Answers 5. 6. 7. 1 8. 1 2 3 3 14 12 of a pie 14 of 12 is18 of the pie
miller_beginning_intermediate_algebra_4e_ch1_3
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