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Rates and ratios

Rates and ratios. ratios. Comparison of two quantities by division Examples 4 to 5 4 : 5. How to write one. Example Mrs. Flynn has a fruit basket. It has 3 bananas, 8 apples and 12 pears. What is the ratio of apples to bananas? = 8 to 3 8 : 3 . You try.

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Rates and ratios

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  1. Rates and ratios

  2. ratios • Comparison of two quantities by division • Examples • 4 to 5 4 : 5

  3. How to write one • Example • Mrs. Flynn has a fruit basket. It has 3 bananas, 8 apples and 12 pears. What is the ratio of apples to bananas? • = 8 to 3 8 : 3

  4. You try • Jacksonville Middle school has 402 6th graders, 390 7th graders and 424 8th graders. What is the ratio of 6th graders to 8th graders? • * if you can simplify you should • 402 to 424 • 201 to 212

  5. Compare ratios • Clermont pet store has 10 different types of salt water fish and 20 different types of fresh water fish. Groveland pet store has 12 different type of salt water fish and 15 different types of fresh water fish. Who has the bigger ratio of salt to fresh water fish? • = or = • 4 to 5 is bigger

  6. You try • Which ratio is bigger? • or 20 to 24 • or 5 to 6 ← • 21 : 49 or 27 to 36 • 3 : 7 or 3 to 4 ←

  7. rates • Ratio that compares two quantities measured in different units

  8. examples

  9. Written and compared • They are written and compared like ratios • *still simplify if needed

  10. Unit rate • A specific type of rate • 1. Has a denominator of 1 • 2. How much for one? • 3. How long for one?

  11. How to find unit rate • Set rate up like fraction • Then divide both numerator and denominator by the denominator. • * this may result in a decimal numerator

  12. You try

  13. Summary of notes

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