1 / 14

Multiplying Fractions Lesson: GCF, Mixed Numbers, and Improper Fractions

This lesson teaches students how to find the GCF of numbers, multiply fractions and mixed numbers, express distances as improper fractions, and solve problems involving multiplication of positive fractions. Vocabulary and step-by-step instructions are provided to aid understanding.

tahir
Download Presentation

Multiplying Fractions Lesson: GCF, Mixed Numbers, and Improper Fractions

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Chapter 2.4

  2. Bell Work • Find the GCF of the numbers • 18, 24 • 12, 36 • Shane bicycled 3 5/6 miles. Express the distance as an improper fraction.

  3. Answers • Find the GCF of the numbers • 18, 24 = 6 • 12, 36 =12 • Shane bicycled 3 5/6 miles. Express the distance as an improper fraction. • 23/6

  4. Objectives • Students will be able to multiply fractions and mixed numbers with 80% accuracy. • Essential Question- How do you multiply two mixed numbers? • NS 2.1- Students will solve problems involving multiplication of positive fractions and explain why a particular operation was used.

  5. Vocabulary • GCF- • Mixed number- • Improper fraction-

  6. Vocabulary • GCF- this is used to help us simplify a fraction. We must divide the numerator and denominator by the GCF. • Mixed number- this is when we have a whole number and a fraction. • Improper fraction- this is when we have a fraction that has a numerator larger than its denominator.

  7. Multiplying Fractions • To solve these types of problems you will be applying standard NS 2.1- multiplying fractions to solve a problem. • Step 1- check to see if you can divide out common factors using the GCF. (cross cancel) • Step 2- multiply the numerator. • Step 3- multiply the denominator. • Step 4- simplify (write your answer in a mixed number if needed)

  8. Don’t Forget • When multiplying a fraction and a whole number, the whole number is the numerator over 1. 18= 18/1 • Complete #’s 1-8, page 88-89 • 1) independently 8 min. • 2) partner (error analysis) 5 min. • 3) poll and review

  9. Multiplying Mixed Numbers • ***Step 1- write the mixed numbers as improper fractions • Step 2- check to see if you can divide out common factors using the GCF. (cross cancel) • Step 2- multiply the numerator. • Step 3- multiply the denominator. • Step 4- simplify (write your answer in a mixed number if needed)

  10. Complete #’s 9-12, page 90 • 1) independently 5 min. • 2) partner (error analysis) 5 min. • 3) poll and review

  11. Closing the lesson What are the mistakes in problems 1 and 2? 3. Explain how to multiply two mixed numbers.

  12. Exit Ticket • 2/5 X 45 • 5/8 X 6/25 • 5 ¼ X 1 3/7 • Find the product of 3/4 X 36. • A recipe calls for 1/4 cups of diced tomatoes. Mia is making three times the recipe. How many cups of diced tomatoes should she use?

  13. Homework • Page 90 #’s 15-18 • Page 91 #’s 31-34 • Due Thursday

More Related