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Learning Target:Students will learn how to compute products of fractions and whole numbers.
There are 15 cars in Michael’s toy car collection. Two-thirds of the cars are red. How many red cars does Michael have? Draw a picture to explain your thinking.
Suzanne has 11 cookies. She wants to share them with her three friends. How many cookies will Suzanne and each of her friends get? Draw a picture to explain your thinking.
Multiplying Fractions by Whole Numbers:Multiply the fraction by the whole number by multiplying the numerator of the fraction by the whole number and put the product over the denominator of the fraction.
Friendly Reminders:- You will still need to check and see if you need to reduce/simplify your answer.- Don’t forget to look for places where you can cross reduce before you multiply.
http://www.onlinemathlearning.com/image-files/cliari54.jpg
Find the product and Simplify if possible.2/9 X 312/5 X 49 X 3/8
Find the product and Simplify if possible.2/9 X 3 = 6/9               = 2/312/5 X 4 = 48/5                  = 9  3/59 X 3/8 = 27/8               = 3  3/8
Use mental math or a model to solve.Find ¾ of 28.Find 36 X 2/9.Not all problems can be solved this way since the numbers have to be compatible.
Use mental math or a model to solve.Find ¾ of 28.21Find 36 X 2/9.8
You are buying 16 cans of cat food. You want 3/8 of the cans to be chicken flavored. How many chicken flavored cans should you buy?
You are buying 16 cans of cat food. You want 3/8 of the cans to be chicken flavored. How many chicken flavored cans should you buy?6 cans
Use mental math or models to solve.Estimate 3/5 X 26.
Use mental math or models to solve.Estimate 3/5 X 26.15
You need to clear space on a shelf to make room for 15 notebooks. Each notebook is 7/8 inch wide. Estimate how much space you need for the notebooks.
You need to clear space on a shelf to make room for 15 notebooks. Each notebook is 7/8 inch wide. Estimate how much space you need for the notebooks.About 14 in
Can you compute products of fractions and whole numbers?
Sec. 7.1

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Sec. 7.1

  • 1. Learning Target:Students will learn how to compute products of fractions and whole numbers.
  • 2. There are 15 cars in Michael’s toy car collection. Two-thirds of the cars are red. How many red cars does Michael have? Draw a picture to explain your thinking.
  • 3. Suzanne has 11 cookies. She wants to share them with her three friends. How many cookies will Suzanne and each of her friends get? Draw a picture to explain your thinking.
  • 4. Multiplying Fractions by Whole Numbers:Multiply the fraction by the whole number by multiplying the numerator of the fraction by the whole number and put the product over the denominator of the fraction.
  • 5. Friendly Reminders:- You will still need to check and see if you need to reduce/simplify your answer.- Don’t forget to look for places where you can cross reduce before you multiply.
  • 7. Find the product and Simplify if possible.2/9 X 312/5 X 49 X 3/8
  • 8. Find the product and Simplify if possible.2/9 X 3 = 6/9 = 2/312/5 X 4 = 48/5 = 9 3/59 X 3/8 = 27/8 = 3 3/8
  • 9. Use mental math or a model to solve.Find ¾ of 28.Find 36 X 2/9.Not all problems can be solved this way since the numbers have to be compatible.
  • 10. Use mental math or a model to solve.Find ¾ of 28.21Find 36 X 2/9.8
  • 11. You are buying 16 cans of cat food. You want 3/8 of the cans to be chicken flavored. How many chicken flavored cans should you buy?
  • 12. You are buying 16 cans of cat food. You want 3/8 of the cans to be chicken flavored. How many chicken flavored cans should you buy?6 cans
  • 13. Use mental math or models to solve.Estimate 3/5 X 26.
  • 14. Use mental math or models to solve.Estimate 3/5 X 26.15
  • 15. You need to clear space on a shelf to make room for 15 notebooks. Each notebook is 7/8 inch wide. Estimate how much space you need for the notebooks.
  • 16. You need to clear space on a shelf to make room for 15 notebooks. Each notebook is 7/8 inch wide. Estimate how much space you need for the notebooks.About 14 in
  • 17. Can you compute products of fractions and whole numbers?