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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 574 · 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.Is 4/7 in its simplest form? (a) Yes (b) No
  2. 2.Write 5/10 in its simplest form. =
  3. 3.What is the HCF of 42 and 60?
  4. 4.Is 2/9 in its simplest form? (a) No (b) Yes
  5. 5.Is 15/40 in its simplest form? (a) Yes (b) No
  6. 6.What is the HCF of 21 and 30?
  7. 7.Is 2/5 in its simplest form? (a) Yes (b) No
  8. 8.What is the HCF of 18 and 20?
  9. 9.What is the HCF of 10 and 12?
  10. 10.Is 36/40 in its simplest form? (a) No (b) Yes
  11. 11.What is the HCF of 15 and 50?
  12. 12.Is 4/36 in its simplest form? (a) No (b) Yes
  13. 13.What is the HCF of 2 and 6?
  14. 14.Write 14/20 in its simplest form. =
  15. 15.What is the HCF of 6 and 16?
  16. 16.Write 21/28 in its simplest form. =
  17. 17.Is 3/7 in its simplest form? (a) No (b) Yes
  18. 18.What is the HCF of 32 and 72?
  19. 19.Write 9/21 in its simplest form. =
  20. 20.What is the HCF of 24 and 80?
  21. 21.What is the HCF of 35 and 56?
  22. 22.What is the HCF of 6 and 42?
  23. 23.Write 7/42 in its simplest form. =
  24. 24.Is 20/45 in its simplest form? (a) Yes (b) No
  25. 25.What is the HCF of 20 and 32?
  26. 26.Is 1/4 in its simplest form? (a) No (b) Yes
  27. 27.Is 1/3 in its simplest form? (a) No (b) Yes
  28. 28.What is the HCF of 8 and 80?
  29. 29.Write 6/42 in its simplest form. =
  30. 30.Write 27/90 in its simplest form. =
  31. 31.Write 7/35 in its simplest form. =
  32. 32.Is 1/9 in its simplest form? (a) No (b) Yes
  33. 33.Is 6/48 in its simplest form? (a) No (b) Yes
  34. 34.Is 3/10 in its simplest form? (a) Yes (b) No
  35. 35.Write 10/15 in its simplest form. =
  36. 36.Write 3/15 in its simplest form. =
  37. 37.Write 12/15 in its simplest form. =
  38. 38.Write 12/14 in its simplest form. =
  39. 39.Is 7/10 in its simplest form? (a) Yes (b) No
  40. 40.Write 24/40 in its simplest form. =

Answer key

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

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