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2.1

Introduction to Fractions and Mixed Numbers. 2.1. Identifying Numerators and Denominators. In a fraction, the top number is called the numerator and the bottom number is called the denominator . The bar between the numbers is called the fraction bar .

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2.1

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  1. Introduction to Fractions and Mixed Numbers 2.1

  2. Identifying Numerators and Denominators In a fraction, the top number is called the numerator and the bottom number is called the denominator. The bar between the numbers is called the fraction bar.

  3. Identifying Numerators and Denominators and Reviewing Division Properties for 0 and 1 Practice Problems 9 2 10 17 Numerator is Denominator is Numerator is Denominator is Simplify P 109-110

  4. Example Write the fraction to represent the shaded part of the figure. In this figure, 4 out of the 7 equal parts are shaded. Thus the fraction is .

  5. Example 109 Write the fraction to represent the shaded part of the diagram. In this diagram, 3 out of the 10 equal parts are shaded. Thus the fraction is .

  6. Example Draw a figure and then shade a part of it to represent the fraction . Since the denominator is 6, we divide the rectangle into 6 equal parts. Then we shade 5 of the equal parts.

  7. Writing Fractions to Represent Shaded Areas of Figures 110 Practice Problems Write a fraction to represent the shaded part of the following. 7. 8. P 113 Elayn Martin-Gay, PEARSON PRENTICE HALL, BASIC COLLEGE MATHEMATICS, 3e – Slide #6

  8. Writing Fractions to Represent Shaded Areas of Figures Practice Problems Write a fraction to represent the shaded part of the following. 9. 10. P 111 Elayn Martin-Gay, PEARSON PRENTICE HALL, BASIC COLLEGE MATHEMATICS, 3e – Slide #6

  9. Create Shaded Areas of Figures To Represent each Fractions Practice Problems Draw and shade a part of a figure to represent each fraction. 11. 12. P 111 Elayn Martin-Gay, PEARSON PRENTICE HALL, BASIC COLLEGE MATHEMATICS, 3e – Slide #6

  10. Identifying Proper Fractions, Improper Fractions and Mixed Numbers 112

  11. Examples 112 Identify each number as a proper fraction, improper fraction, or mixed number. a. b. c. a proper fraction a mixed number an improper fraction

  12. Identifying Proper Fractions, Improper Fractions, and Mixed Numbers Practice Problem 14 Identify each number as a proper fraction, improper fraction, or mixed number. P 112 Elayn Martin-Gay, PEARSON PRENTICE HALL, BASIC COLLEGE MATHEMATICS, 3e – Slide #5

  13. Mixed Numbers and Improper Fractions

  14. Mixed Numbers and Improper Fractions

  15. Examples Write each as a mixed number or a whole number. a. b. c.

  16. Identifying Proper Fractions, Improper Fractions, and Mixed Numbers Practice Problems Write a fraction to represent the shaded part of the following. 15. 16. P 113 Elayn Martin-Gay, PEARSON PRENTICE HALL, BASIC COLLEGE MATHEMATICS, 3e – Slide #6

  17. Identifying Proper Fractions, Improper Fractions, and Mixed Numbers Practice Problem 17 Write each as an improper fraction P 113 Elayn Martin-Gay, PEARSON PRENTICE HALL, BASIC COLLEGE MATHEMATICS, 3e – Slide #5

  18. Identifying Proper Fractions, Improper Fractions, and Mixed Numbers Practice Problem 18 Write each as an mixed number or a whole number P 114 Elayn Martin-Gay, PEARSON PRENTICE HALL, BASIC COLLEGE MATHEMATICS, 3e – Slide #5

  19. DONE

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