PPT-Multipling Fractions

We have added and subtracted fractions In this lesson we will multiply fractions When we add and subtract fractions we count how many of the same size parts there are When we multiply fractions the sizes of the parts change Consider this multiplication problem . 1 07 01 05 04 02 2 16 28 19 21 11 3 34 26 57 32 22 4 43 21 18 25 5 11 07 05 26 03 6 05 32 28 01 24 7 16 61 06 60 26 8 14 11 17 15 9 57 52 57 62 22 10 42 51 14 45 76 brPage 2br Ordering Decimal Fractions 2 Write out each list of decimals in order sta with. Unlike Denominators. 15. 1. 15. 1. +. Adding Fractions with Unlike Denominators. 5. 1. 5. 1. 5. 1. 3. 1. 15. 1. 15. 1. 15. 1. 15. 1. 15. 1. 15. 1. 15. 1. 15. 1. 15. 1. 15. 1. 15. 1. 15. 1. 15. 1. Introducing:. factor. product. reciprocal. inverse. identity. http://www.visualfractions.com/investigate.htm. Multiply Fractions 1. The parts of this multiplication example are the first . factor. Introducing:. Common Denominator. The . common denominator. of 5 and 4 is 20 because both 5 and 4 divide evenly into 20. . Compare Fractions . 1. 12. 20. 15. 20. 3. 5. 3. 4. 3. 5. <. 3. 4. Here is the picture of . with. Unlike Denominators. 15. 1. 15. 1. +. Adding Fractions with Unlike Denominators. 5. 1. 5. 1. 5. 1. 3. 1. 15. 1. 15. 1. 15. 1. 15. 1. 15. 1. 15. 1. 15. 1. 15. 1. 15. 1. 15. 1. 15. 1. 15. 1. 15. 1. Tomoko Keilholtz. Jessica . Lunerdelli. . Amber Player. Clair . williams. https://www.youtube.com/watch?v=6ooKWyPI0i4. 2.G.A.2 . Partition Rectangles. Summary:. This standard begins the formal foundation of the idea of area development. Since we measure area in square units, it is natural to begin with rectangles and partition them into square regions so that we can easily count the total. Unit 5.7. Pages 250-253. . . 2.. 3.. 4.. 6. 50. 30. 120 . Warm Up . Problems. Write each fraction in simplest form.. What is ½ of 12. . What is ½ of 100. What is ¼ of 120. What is ¼ of 480. quarter. 1. 4. 1. 4. 1. 4. A quarter is a quarter of 1. A quarter is half of a half. Fractions and Decimals 3. quarter. 1. 4. 1. 4. 1. 4. A quarter is a quarter of 1. A quarter is half of a half. Fractions and Decimals 3. “You better cut the pizza in four pieces because I'm not hungry enough to eat six.“ – . Yogi Berra . Inspired by Greg Tang, NCTM Conference, 2012. When does instruction in fractional thinking begin?. 3/23/17. How do we multiply and divide fractions and mixed numbers?. How do we use models to multiply and divide fractions?. How do we estimate products and quotients of fractions?. Today We’ll Discuss. Made Easy!. My momma. says I should “change” my shirt before she “flips” her lid!. © . Mike’s Math Mall. Using…. CCSS 5NBT.B.7. Same!. Change!. Flip!. Because with a little change to a division of fractions’ problem, you’ll be right back to multiplying!. Introduction. In this chapter you will learn to add fractions with different denominators (a recap). You will learn to work backwards and split an algebraic fraction into components called ‘Partial Fractions’. Which is an equivalent fraction? .  . A. . B. . C. . D. .  . Which is an equivalent fraction? .  . A. . B. . C. . D. .  . Which is an equivalent fraction? .  . A. . B. . C. . D. .  . Elizabeth Blaesser/Maccani . Click here to continue.. Introduction. This project is designed for Mrs. Maccani’s 3. rd. grade class.. The purpose of this project is to understand the relationship between whole numbers, simple fractions, and decimals. Students will demonstrate their understanding of equivalency and problem solving related to fractions and decimals..