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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 769 · 40 questions
TalentJR

The method (Divide by the HCF): Find the HCF (highest common factor) of the top and the bottom. Divide the top and the bottom by the HCF. If the HCF is 1, the fraction is already in its simplest form.

NameDateTime takenScore ___ / 40
  1. 1.Write 72/80 in its simplest form. =
  2. 2.Is 4/6 in its simplest form? (a) No (b) Yes
  3. 3.Is 16/20 in its simplest form? (a) Yes (b) No
  4. 4.Write 25/30 in its simplest form. =
  5. 5.Write 24/28 in its simplest form. =
  6. 6.Write 20/25 in its simplest form. =
  7. 7.Write 9/18 in its simplest form. =
  8. 8.What is the HCF of 32 and 36?
  9. 9.What is the HCF of 3 and 6?
  10. 10.Is 14/20 in its simplest form? (a) Yes (b) No
  11. 11.Write 2/10 in its simplest form. =
  12. 12.Is 6/7 in its simplest form? (a) Yes (b) No
  13. 13.What is the HCF of 20 and 24?
  14. 14.What is the HCF of 48 and 56?
  15. 15.Is 6/9 in its simplest form? (a) No (b) Yes
  16. 16.What is the HCF of 30 and 54?
  17. 17.Write 12/21 in its simplest form. =
  18. 18.What is the HCF of 20 and 32?
  19. 19.Write 2/12 in its simplest form. =
  20. 20.Write 15/21 in its simplest form. =
  21. 21.What is the HCF of 4 and 40?
  22. 22.What is the HCF of 54 and 60?
  23. 23.What is the HCF of 14 and 35?
  24. 24.Is 24/30 in its simplest form? (a) Yes (b) No
  25. 25.What is the HCF of 2 and 6?
  26. 26.Is 3/8 in its simplest form? (a) No (b) Yes
  27. 27.Is 8/36 in its simplest form? (a) Yes (b) No
  28. 28.Is 1/10 in its simplest form? (a) No (b) Yes
  29. 29.Write 4/28 in its simplest form. =
  30. 30.Is 10/18 in its simplest form? (a) Yes (b) No
  31. 31.Is 8/20 in its simplest form? (a) No (b) Yes
  32. 32.Write 15/18 in its simplest form. =
  33. 33.What is the HCF of 7 and 42?
  34. 34.What is the HCF of 42 and 60?
  35. 35.What is the HCF of 2 and 10?
  36. 36.Write 36/40 in its simplest form. =
  37. 37.Is 5/45 in its simplest form? (a) No (b) Yes
  38. 38.Write 3/21 in its simplest form. =
  39. 39.What is the HCF of 28 and 49?
  40. 40.Is 1/7 in its simplest form? (a) Yes (b) No

Answer key

  1. 9/10
  2. No
  3. No
  4. 5/6
  5. 6/7
  6. 4/5
  7. 1/2
  8. 4
  9. 3
  10. No
  11. 1/5
  12. Yes
  13. 4
  14. 8
  15. No
  16. 6
  17. 4/7
  18. 4
  19. 1/6
  20. 5/7
  21. 4
  22. 6
  23. 7
  24. No
  25. 2
  26. Yes
  27. No
  28. Yes
  29. 1/7
  30. No
  31. No
  32. 5/6
  33. 7
  34. 6
  35. 2
  36. 9/10
  37. No
  38. 1/7
  39. 7
  40. Yes

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