PPT-Multiplying & Dividing Fractions Review

621 Multiplying Fractions 622 Dividing Fractions 623 Dividing Mixed Numbers Multiplying Fractions Step 1 Multiply across the top of both fractions Step 2 Multiply across the bottom. The Area Model. Follows Area Model for Multiplication of Whole Numbers. A visual model that assists in learning the standard algorithm. Extends easily to multiplying mixed numbers. Natural extension to . Created by: Mrs. J Couch. Dividing Decimals. Dividing Decimals. Practice. Solve:. Practice. The school put up a sign to advertise a car wash in the school parking lot to raise money for library books. One hundred fifty two people signed up to have a car washed on Saturday. If one student can wash 25 cars in a day, how many students will have to work on Saturday in order to finish the job?. (Part Two). To find 1/8 of something, we divide that thing by 8.. What if we wanted to know what 3/8 of something was? . You’d be doing the same thing 3 times, so you would multiply by 3. . (72 is a whole number – so it’s all in one group. 72 ÷1 is… 72.) . 04. /04/17. How do we multiply and divide decimals using fractions?. How do we multiply and divide decimals using algorithms?. How do we use division to write repeating decimals?. How do we use scientific notation?. 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. Dividing a Monomial by a Monomial. Dividing a Polynomial by a Monomial. Dividing a Polynomial by a Polynomial . Long Division Technique. Handling Missing Terms. 6.6. 1. Negative Exponent Rule . Quotient Rule for Exponents. TeacherTwins©2014. Warm Up. Add or subtract.. 1). . 2). . 3). . 4). . 5). Explain how to change the following problem to an addition problem and solve. .  . 6. 11. -6. -11. Leave, change , opposite 9+ 9 = 18. 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: . You need your Journal open to the next clean page to glue in your Quiz, ruler, and a pencil. Please copy your Agenda for the week.. Bar Models and Number Lines. Using the problems for 12 . ÷ . 3 = 4 . our friends!. Now, let’s. n. ot get all crazy. with this “friend” stuff,. Mr. Sunshine.. © . Mike’s Math Mall. Multiplying. Made easy!. PowerPoint. Introduction. Multiplying Fractions. Hi! My. Multiplying Decimals Example: 5.63 x 3.7 5 . 63 3 . 7 x 1 2 4 4 39 0 9 8 1 16 + 1 3 1 8 1 0 1 2 two one three . You do not line up the factors by the decimal. Instead, place the number with more digits on top. Chapter 7 Multiplying Fractions MAFS.5.NF.2.4; MAFS.5.NF.2.5 ; MAFS.5.NF.2.6 https://www.youtube.com/watch?v=CcDGRLosAf0&feature=youtu.be Ch 7 Vocabulary 1. denominator​ the number below the bar in a fraction that tells how many equal parts are in the whole or in the group Adding & Subtracting . The Rule: The denominator(s) must be the same. Ex: . 3 . + . 5 . - . 1 . = ? . 4 8 3 . Common denominator is…... …..24 . Slides 13-15: . Workbook Introduction Problem p. 55 . Slide 16: . Workbook Practice. . p. 57-58. Multiplying Multi-Digit Numbers. Enhanced Learning Task. What do we know?. . What do we need to find?.