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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 146 · 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 56 and 63?
  2. 2.Write 28/32 in its simplest form. =
  3. 3.Is 4/5 in its simplest form? (a) No (b) Yes
  4. 4.What is the HCF of 14 and 35?
  5. 5.Is 20/36 in its simplest form? (a) No (b) Yes
  6. 6.Write 15/40 in its simplest form. =
  7. 7.What is the HCF of 36 and 42?
  8. 8.What is the HCF of 4 and 14?
  9. 9.What is the HCF of 28 and 63?
  10. 10.Is 2/5 in its simplest form? (a) No (b) Yes
  11. 11.Write 9/54 in its simplest form. =
  12. 12.Is 2/7 in its simplest form? (a) No (b) Yes
  13. 13.Write 18/45 in its simplest form. =
  14. 14.What is the HCF of 12 and 20?
  15. 15.What is the HCF of 9 and 81?
  16. 16.Write 49/70 in its simplest form. =
  17. 17.What is the HCF of 16 and 28?
  18. 18.Is 9/10 in its simplest form? (a) Yes (b) No
  19. 19.Write 18/21 in its simplest form. =
  20. 20.What is the HCF of 9 and 36?
  21. 21.What is the HCF of 2 and 10?
  22. 22.Is 3/7 in its simplest form? (a) Yes (b) No
  23. 23.Write 4/8 in its simplest form. =
  24. 24.Write 27/63 in its simplest form. =
  25. 25.Write 14/35 in its simplest form. =
  26. 26.What is the HCF of 4 and 8?
  27. 27.Is 20/25 in its simplest form? (a) No (b) Yes
  28. 28.Write 3/6 in its simplest form. =
  29. 29.Is 16/20 in its simplest form? (a) No (b) Yes
  30. 30.Write 9/27 in its simplest form. =
  31. 31.Is 3/4 in its simplest form? (a) No (b) Yes
  32. 32.Write 18/20 in its simplest form. =
  33. 33.What is the HCF of 42 and 60?
  34. 34.What is the HCF of 14 and 20?
  35. 35.Is 6/7 in its simplest form? (a) Yes (b) No
  36. 36.What is the HCF of 25 and 40?
  37. 37.Is 7/9 in its simplest form? (a) Yes (b) No
  38. 38.Write 12/21 in its simplest form. =
  39. 39.Write 45/50 in its simplest form. =
  40. 40.Write 21/35 in its simplest form. =

Answer key

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

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