Equivalent fractions - PowerPoint PPT Presentation

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Equivalent fractions

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  1. 1 whole 1/2 1/2 1/4 1/4 1/4 1/4 1/8 1/8 1/8 1/8 1/8 1/8 1/8 1/8 Equivalent fractions We are learning about equivalent fractions

  2. 1 whole ½ ½ ¼ ¼ ¼ ¼ 1/8 1/8 1/8 1/8 1/8 1/8 1/8 1/8 We can see that 1/1= 2/2 = 4/4 = 8/8 They are equivalent fractions

  3. 1 whole 1/2 1/2 1/4 1/4 1/4 1/4 1/8 1/8 1/8 1/8 1/8 1/8 1/8 1/8 We can see that 2/8 is the same length as 1/4 So 2/8 = 1/4 They are equivalent fractions

  4. 1 whole ½ ¼ ¼ 1/8 1/8 1/8 1/8 Which fractions are equivalent to ½? 1/2= 2/4 = 4/8

  5. 1 whole 1/2 1/2 1/4 1/4 1/4 1/4 1/8 1/8 1/8 1/8 1/8 1/8 1/8 1/8 Which of these fractions is equivalent to1/4? 2/8 1/8 1/2

  6. Whoops try again!

  7. Well done! That's right

  8. 1 whole 1/2 1/2 1/4 1/4 1/4 1/4 1/8 1/8 1/8 1/8 1/8 1/8 1/8 1/8 1/8 Which of these fractions is equivalent to4/8? 2/4 1/4

  9. Whoops try again!

  10. Well done! That's right

  11. 1 whole 1/3 1/3 1/3 1/6 1/6 1/6 1/6 1/6 1/6 1/12 1/12 1/12 1/12 1/12 1/12 1/12 1/12 1/12 1/12 1/12 1/12 =  =  1/3 2/6 4/12 Look at the equivalent fractions – each time the numerators double, the denominators also double. Which other fraction will be equivalent? 8/24 6/24 4/24

  12. Think of a pizza cut into six pieces How many sixths are equivalent to ½?

  13. 1 whole 1/3 1/3 1/3 1/6 1/6 1/6 1/6 1/6 1/6 1/12 1/12 1/12 1/12 1/12 1/12 1/12 1/12 1/12 1/12 1/12 1/12 Comparing Fractions Which is greater? 1/3 or 4/6 4/6

  14. 1 whole 1/2 1/2 1/4 1/4 1/4 1/4 1/8 1/8 1/8 1/8 1/8 1/8 1/8 1/8 Comparing Fractions Which is greater? ½ or 5/8 5/8

  15. 1 whole 1/3 1/3 1/3 1/6 1/6 1/6 1/6 1/6 1/6 1/12 1/12 1/12 1/12 1/12 1/12 1/12 1/12 1/12 1/12 1/12 1/12 Comparing Fractions • Which is greater? 6/12 or 2/3 2/3

  16. 1 whole 1/2 1/2 1/4 1/4 1/4 1/4 1/8 1/8 1/8 1/8 1/8 1/8 1/8 1/8 Comparing Fractions • Which is greater? 6/8 or ¾ They are equal.

  17. Equivalent Fractions • To find equivalent fractions, you can either Multiply or Divide. 1 = x 2 = 2 3 x 2 6

  18. Equivalent Fractions • To find equivalent fractions, you can either Multiply or Divide. 6 = ÷ 2 = 3 8 ÷ 2 4

  19. Multiply or Divide? • 1 = 4 2 8 Multiply by 4

  20. Multiply or Divide? • 4 = 2 10 5 Divide by 2

  21. Multiply or Divide? • 6 = 3 12 6 Divide by 2

  22. Multiply or Divide? • 4 = 8 5 10 Multiply by 2

  23. Multiply or Divide? • 6 = 3 8 4 Divide by 2

  24. Now we’ve learned what equivalent fractions are – let’s find some ourselves. Good Luck!