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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 120 · 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.What is the HCF of 16 and 72?
  2. 2.What is the HCF of 6 and 10?
  3. 3.Write 3/24 in its simplest form. =
  4. 4.What is the HCF of 10 and 35?
  5. 5.Is 9/21 in its simplest form? (a) No (b) Yes
  6. 6.What is the HCF of 42 and 54?
  7. 7.Write 20/36 in its simplest form. =
  8. 8.Write 9/24 in its simplest form. =
  9. 9.Is 2/5 in its simplest form? (a) Yes (b) No
  10. 10.Is 2/10 in its simplest form? (a) Yes (b) No
  11. 11.What is the HCF of 2 and 8?
  12. 12.What is the HCF of 21 and 30?
  13. 13.What is the HCF of 21 and 28?
  14. 14.Is 6/7 in its simplest form? (a) No (b) Yes
  15. 15.Is 5/9 in its simplest form? (a) Yes (b) No
  16. 16.Write 2/10 in its simplest form. =
  17. 17.What is the HCF of 6 and 48?
  18. 18.What is the HCF of 18 and 20?
  19. 19.What is the HCF of 8 and 80?
  20. 20.Write 2/16 in its simplest form. =
  21. 21.Is 6/14 in its simplest form? (a) Yes (b) No
  22. 22.Write 15/21 in its simplest form. =
  23. 23.What is the HCF of 4 and 16?
  24. 24.What is the HCF of 21 and 27?
  25. 25.What is the HCF of 7 and 14?
  26. 26.Write 6/30 in its simplest form. =
  27. 27.Is 1/10 in its simplest form? (a) Yes (b) No
  28. 28.What is the HCF of 14 and 35?
  29. 29.Is 20/28 in its simplest form? (a) Yes (b) No
  30. 30.What is the HCF of 8 and 18?
  31. 31.Write 32/36 in its simplest form. =
  32. 32.Write 36/81 in its simplest form. =
  33. 33.Is 6/24 in its simplest form? (a) No (b) Yes
  34. 34.Is 3/7 in its simplest form? (a) No (b) Yes
  35. 35.Write 32/40 in its simplest form. =
  36. 36.Write 14/63 in its simplest form. =
  37. 37.Is 1/7 in its simplest form? (a) Yes (b) No
  38. 38.Write 28/49 in its simplest form. =
  39. 39.Write 3/12 in its simplest form. =
  40. 40.Write 8/10 in its simplest form. =

Answer key

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

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