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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 539 · 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 5/30 in its simplest form. =
  2. 2.What is the HCF of 14 and 35?
  3. 3.What is the HCF of 24 and 27?
  4. 4.Is 6/14 in its simplest form? (a) No (b) Yes
  5. 5.What is the HCF of 32 and 72?
  6. 6.What is the HCF of 16 and 40?
  7. 7.Is 2/20 in its simplest form? (a) Yes (b) No
  8. 8.Write 27/36 in its simplest form. =
  9. 9.What is the HCF of 9 and 36?
  10. 10.Write 27/30 in its simplest form. =
  11. 11.Is 1/3 in its simplest form? (a) Yes (b) No
  12. 12.Is 5/20 in its simplest form? (a) No (b) Yes
  13. 13.What is the HCF of 4 and 18?
  14. 14.Write 12/27 in its simplest form. =
  15. 15.Is 10/18 in its simplest form? (a) No (b) Yes
  16. 16.What is the HCF of 30 and 36?
  17. 17.Write 30/35 in its simplest form. =
  18. 18.Write 32/40 in its simplest form. =
  19. 19.Write 28/36 in its simplest form. =
  20. 20.Is 1/5 in its simplest form? (a) No (b) Yes
  21. 21.Is 1/8 in its simplest form? (a) No (b) Yes
  22. 22.Write 42/48 in its simplest form. =
  23. 23.What is the HCF of 27 and 72?
  24. 24.Is 1/9 in its simplest form? (a) No (b) Yes
  25. 25.Is 2/9 in its simplest form? (a) No (b) Yes
  26. 26.Is 1/7 in its simplest form? (a) No (b) Yes
  27. 27.Write 25/30 in its simplest form. =
  28. 28.Is 6/36 in its simplest form? (a) No (b) Yes
  29. 29.Is 16/20 in its simplest form? (a) Yes (b) No
  30. 30.Write 15/25 in its simplest form. =
  31. 31.What is the HCF of 24 and 42?
  32. 32.What is the HCF of 21 and 30?
  33. 33.Is 4/9 in its simplest form? (a) No (b) Yes
  34. 34.Is 21/30 in its simplest form? (a) No (b) Yes
  35. 35.Write 12/32 in its simplest form. =
  36. 36.What is the HCF of 7 and 63?
  37. 37.What is the HCF of 18 and 30?
  38. 38.Is 5/8 in its simplest form? (a) Yes (b) No
  39. 39.What is the HCF of 8 and 80?
  40. 40.What is the HCF of 8 and 64?

Answer key

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

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