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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 436 · 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 12 and 28?
  2. 2.Is 3/18 in its simplest form? (a) Yes (b) No
  3. 3.Write 42/54 in its simplest form. =
  4. 4.What is the HCF of 24 and 64?
  5. 5.Is 3/30 in its simplest form? (a) No (b) Yes
  6. 6.What is the HCF of 20 and 35?
  7. 7.What is the HCF of 2 and 20?
  8. 8.Is 1/7 in its simplest form? (a) No (b) Yes
  9. 9.Is 18/21 in its simplest form? (a) No (b) Yes
  10. 10.What is the HCF of 3 and 30?
  11. 11.Write 5/50 in its simplest form. =
  12. 12.Is 15/27 in its simplest form? (a) No (b) Yes
  13. 13.Write 24/42 in its simplest form. =
  14. 14.What is the HCF of 20 and 25?
  15. 15.Is 12/15 in its simplest form? (a) No (b) Yes
  16. 16.Write 24/32 in its simplest form. =
  17. 17.What is the HCF of 35 and 42?
  18. 18.Is 3/8 in its simplest form? (a) No (b) Yes
  19. 19.Is 5/7 in its simplest form? (a) No (b) Yes
  20. 20.Is 12/18 in its simplest form? (a) No (b) Yes
  21. 21.Is 4/6 in its simplest form? (a) No (b) Yes
  22. 22.What is the HCF of 28 and 49?
  23. 23.Is 30/42 in its simplest form? (a) No (b) Yes
  24. 24.Is 5/9 in its simplest form? (a) No (b) Yes
  25. 25.Write 10/35 in its simplest form. =
  26. 26.Write 6/48 in its simplest form. =
  27. 27.Write 49/63 in its simplest form. =
  28. 28.Write 21/56 in its simplest form. =
  29. 29.What is the HCF of 4 and 16?
  30. 30.Is 3/5 in its simplest form? (a) No (b) Yes
  31. 31.What is the HCF of 15 and 20?
  32. 32.Is 1/10 in its simplest form? (a) No (b) Yes
  33. 33.What is the HCF of 54 and 60?
  34. 34.Write 27/30 in its simplest form. =
  35. 35.What is the HCF of 56 and 63?
  36. 36.Is 7/8 in its simplest form? (a) Yes (b) No
  37. 37.What is the HCF of 2 and 12?
  38. 38.Write 8/10 in its simplest form. =
  39. 39.Is 8/9 in its simplest form? (a) Yes (b) No
  40. 40.Write 6/20 in its simplest form. =

Answer key

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

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