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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 486 · 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 5/25 in its simplest form. =
  2. 2.Is 4/28 in its simplest form? (a) Yes (b) No
  3. 3.Is 3/8 in its simplest form? (a) Yes (b) No
  4. 4.What is the HCF of 18 and 48?
  5. 5.Write 16/40 in its simplest form. =
  6. 6.What is the HCF of 16 and 28?
  7. 7.What is the HCF of 21 and 49?
  8. 8.Write 14/20 in its simplest form. =
  9. 9.What is the HCF of 20 and 32?
  10. 10.What is the HCF of 2 and 10?
  11. 11.What is the HCF of 8 and 36?
  12. 12.What is the HCF of 10 and 16?
  13. 13.Write 8/80 in its simplest form. =
  14. 14.Write 42/60 in its simplest form. =
  15. 15.What is the HCF of 40 and 64?
  16. 16.Is 18/30 in its simplest form? (a) No (b) Yes
  17. 17.Write 15/50 in its simplest form. =
  18. 18.Write 42/49 in its simplest form. =
  19. 19.Write 8/12 in its simplest form. =
  20. 20.What is the HCF of 4 and 8?
  21. 21.Is 24/30 in its simplest form? (a) No (b) Yes
  22. 22.What is the HCF of 24 and 54?
  23. 23.Is 10/35 in its simplest form? (a) No (b) Yes
  24. 24.Write 4/40 in its simplest form. =
  25. 25.What is the HCF of 6 and 42?
  26. 26.What is the HCF of 8 and 16?
  27. 27.Is 1/10 in its simplest form? (a) Yes (b) No
  28. 28.Is 2/3 in its simplest form? (a) No (b) Yes
  29. 29.Write 6/21 in its simplest form. =
  30. 30.Is 1/5 in its simplest form? (a) Yes (b) No
  31. 31.Write 14/16 in its simplest form. =
  32. 32.What is the HCF of 8 and 10?
  33. 33.What is the HCF of 49 and 56?
  34. 34.Write 14/63 in its simplest form. =
  35. 35.Write 4/24 in its simplest form. =
  36. 36.Write 8/20 in its simplest form. =
  37. 37.Write 2/6 in its simplest form. =
  38. 38.Is 3/4 in its simplest form? (a) No (b) Yes
  39. 39.Is 5/30 in its simplest form? (a) No (b) Yes
  40. 40.What is the HCF of 15 and 25?

Answer key

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

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