PPT-Multiplying and Dividing Fractions

  Can you name the parts of a fraction numerator denominator What sort of fractions numbers are these       p roper fraction improper fraction m ixed number Multiplying Fractions. 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?. Essential Question: How do we multiply integers? How do we divide integers?. Multiplying Integers . The product of two integers with the same sign is positive.. The product of two integers with different sign is negative.. Unit 5.6. Pages 244-247. . . 2.. 3.. 4.. 30. 96. 144. 120 . Warm Up . Problems. Write each fraction in simplest form.. 15 x 2 . 12 x 8. 9 x 16. 8 x 15. Multiplying whole number Fractions. Objective: . 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. 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?. When dividing a decimal by a whole number, divide as with whole numbers. Then place the decimal in the quotient directly above its place in the dividend.. Example:. Dividing Decimals by Single Digit Whole Number. 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. keep. Change!. Flip!. Because with a little change to a division of fractions’ problem, you’ll be right back to multiplying!. 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: . 6.2.1 Multiplying Fractions. 6.2.2 Dividing Fractions. 6.2.3 Dividing Mixed Numbers. Multiplying Fractions. Step #1. : Multiply across the . top. of both fractions. Step #2. : Multiply across the . bottom. We are learning to divide . fractions . using related multiplication.. 2. When would you divide fractions?. One example is when you are trying to figure out how many episodes of your favorite ½ hour tv program you could watch in the 1 ½ hrs you have available. . 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. 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?.