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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 867 · 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 5/8 in its simplest form? (a) Yes (b) No
  2. 2.Write 28/35 in its simplest form. =
  3. 3.Write 14/35 in its simplest form. =
  4. 4.Is 2/10 in its simplest form? (a) No (b) Yes
  5. 5.Is 1/7 in its simplest form? (a) Yes (b) No
  6. 6.Is 3/5 in its simplest form? (a) Yes (b) No
  7. 7.Is 6/20 in its simplest form? (a) No (b) Yes
  8. 8.What is the HCF of 4 and 16?
  9. 9.What is the HCF of 14 and 20?
  10. 10.What is the HCF of 10 and 18?
  11. 11.Write 21/35 in its simplest form. =
  12. 12.What is the HCF of 64 and 72?
  13. 13.Write 18/45 in its simplest form. =
  14. 14.Write 40/64 in its simplest form. =
  15. 15.Is 4/12 in its simplest form? (a) No (b) Yes
  16. 16.Is 2/5 in its simplest form? (a) Yes (b) No
  17. 17.Write 6/48 in its simplest form. =
  18. 18.Is 35/45 in its simplest form? (a) No (b) Yes
  19. 19.Is 20/28 in its simplest form? (a) No (b) Yes
  20. 20.Write 7/42 in its simplest form. =
  21. 21.Is 8/20 in its simplest form? (a) No (b) Yes
  22. 22.Is 1/9 in its simplest form? (a) No (b) Yes
  23. 23.Write 3/9 in its simplest form. =
  24. 24.Is 20/32 in its simplest form? (a) No (b) Yes
  25. 25.Write 45/63 in its simplest form. =
  26. 26.What is the HCF of 16 and 24?
  27. 27.Write 5/40 in its simplest form. =
  28. 28.What is the HCF of 15 and 24?
  29. 29.Is 9/12 in its simplest form? (a) No (b) Yes
  30. 30.What is the HCF of 8 and 64?
  31. 31.What is the HCF of 24 and 40?
  32. 32.What is the HCF of 27 and 63?
  33. 33.Is 9/10 in its simplest form? (a) No (b) Yes
  34. 34.Write 4/10 in its simplest form. =
  35. 35.What is the HCF of 16 and 36?
  36. 36.Write 21/30 in its simplest form. =
  37. 37.Write 42/54 in its simplest form. =
  38. 38.Is 3/8 in its simplest form? (a) No (b) Yes
  39. 39.Write 6/36 in its simplest form. =
  40. 40.What is the HCF of 4 and 18?

Answer key

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

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