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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 41 · 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 42 and 48?
  2. 2.Write 8/32 in its simplest form. =
  3. 3.Is 5/8 in its simplest form? (a) No (b) Yes
  4. 4.Write 9/12 in its simplest form. =
  5. 5.Write 4/20 in its simplest form. =
  6. 6.Write 5/30 in its simplest form. =
  7. 7.Write 2/4 in its simplest form. =
  8. 8.Is 1/8 in its simplest form? (a) No (b) Yes
  9. 9.Write 8/14 in its simplest form. =
  10. 10.What is the HCF of 21 and 24?
  11. 11.Is 18/30 in its simplest form? (a) Yes (b) No
  12. 12.Is 32/36 in its simplest form? (a) No (b) Yes
  13. 13.Write 21/27 in its simplest form. =
  14. 14.What is the HCF of 63 and 81?
  15. 15.Is 1/3 in its simplest form? (a) No (b) Yes
  16. 16.Write 24/40 in its simplest form. =
  17. 17.Write 15/50 in its simplest form. =
  18. 18.Is 5/7 in its simplest form? (a) Yes (b) No
  19. 19.Is 35/50 in its simplest form? (a) Yes (b) No
  20. 20.Is 3/8 in its simplest form? (a) Yes (b) No
  21. 21.What is the HCF of 12 and 15?
  22. 22.What is the HCF of 18 and 81?
  23. 23.What is the HCF of 32 and 36?
  24. 24.Write 3/9 in its simplest form. =
  25. 25.What is the HCF of 35 and 50?
  26. 26.Write 25/35 in its simplest form. =
  27. 27.Write 56/64 in its simplest form. =
  28. 28.Is 5/6 in its simplest form? (a) Yes (b) No
  29. 29.Is 9/12 in its simplest form? (a) Yes (b) No
  30. 30.Write 8/40 in its simplest form. =
  31. 31.Write 7/21 in its simplest form. =
  32. 32.Is 20/25 in its simplest form? (a) Yes (b) No
  33. 33.Is 9/24 in its simplest form? (a) No (b) Yes
  34. 34.What is the HCF of 2 and 4?
  35. 35.What is the HCF of 4 and 20?
  36. 36.Write 5/20 in its simplest form. =
  37. 37.Is 30/48 in its simplest form? (a) Yes (b) No
  38. 38.Write 25/40 in its simplest form. =
  39. 39.Write 21/70 in its simplest form. =
  40. 40.What is the HCF of 5 and 35?

Answer key

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

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