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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 376 · 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 3/24 in its simplest form. =
  2. 2.Is 15/40 in its simplest form? (a) Yes (b) No
  3. 3.Write 7/56 in its simplest form. =
  4. 4.Is 4/28 in its simplest form? (a) Yes (b) No
  5. 5.What is the HCF of 4 and 10?
  6. 6.Write 7/70 in its simplest form. =
  7. 7.What is the HCF of 48 and 56?
  8. 8.Is 1/10 in its simplest form? (a) Yes (b) No
  9. 9.Write 15/20 in its simplest form. =
  10. 10.What is the HCF of 16 and 20?
  11. 11.Write 81/90 in its simplest form. =
  12. 12.Write 16/28 in its simplest form. =
  13. 13.What is the HCF of 9 and 72?
  14. 14.Write 2/6 in its simplest form. =
  15. 15.Is 7/10 in its simplest form? (a) No (b) Yes
  16. 16.Write 4/14 in its simplest form. =
  17. 17.Is 9/10 in its simplest form? (a) Yes (b) No
  18. 18.Write 12/15 in its simplest form. =
  19. 19.What is the HCF of 42 and 48?
  20. 20.What is the HCF of 12 and 20?
  21. 21.Is 5/9 in its simplest form? (a) No (b) Yes
  22. 22.What is the HCF of 8 and 12?
  23. 23.Write 18/42 in its simplest form. =
  24. 24.Is 2/4 in its simplest form? (a) Yes (b) No
  25. 25.What is the HCF of 2 and 14?
  26. 26.What is the HCF of 35 and 40?
  27. 27.Write 56/72 in its simplest form. =
  28. 28.Is 2/7 in its simplest form? (a) Yes (b) No
  29. 29.Write 6/42 in its simplest form. =
  30. 30.Write 18/27 in its simplest form. =
  31. 31.What is the HCF of 4 and 18?
  32. 32.Is 4/8 in its simplest form? (a) No (b) Yes
  33. 33.What is the HCF of 40 and 64?
  34. 34.Write 12/32 in its simplest form. =
  35. 35.Write 4/6 in its simplest form. =
  36. 36.What is the HCF of 24 and 42?
  37. 37.Write 7/21 in its simplest form. =
  38. 38.What is the HCF of 81 and 90?
  39. 39.Is 9/21 in its simplest form? (a) Yes (b) No
  40. 40.What is the HCF of 4 and 8?

Answer key

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

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