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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 680 · 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.Write 8/18 in its simplest form. =
  2. 2.What is the HCF of 28 and 63?
  3. 3.Write 7/14 in its simplest form. =
  4. 4.Write 30/48 in its simplest form. =
  5. 5.Write 40/56 in its simplest form. =
  6. 6.What is the HCF of 16 and 20?
  7. 7.Is 9/10 in its simplest form? (a) No (b) Yes
  8. 8.Is 14/18 in its simplest form? (a) No (b) Yes
  9. 9.Is 6/30 in its simplest form? (a) Yes (b) No
  10. 10.What is the HCF of 4 and 36?
  11. 11.Write 42/60 in its simplest form. =
  12. 12.What is the HCF of 35 and 56?
  13. 13.What is the HCF of 2 and 20?
  14. 14.Write 49/70 in its simplest form. =
  15. 15.Is 2/5 in its simplest form? (a) Yes (b) No
  16. 16.Is 4/5 in its simplest form? (a) No (b) Yes
  17. 17.Write 3/21 in its simplest form. =
  18. 18.Write 10/14 in its simplest form. =
  19. 19.Write 20/25 in its simplest form. =
  20. 20.What is the HCF of 3 and 18?
  21. 21.Write 24/56 in its simplest form. =
  22. 22.Is 5/7 in its simplest form? (a) No (b) Yes
  23. 23.Write 3/15 in its simplest form. =
  24. 24.Write 14/18 in its simplest form. =
  25. 25.What is the HCF of 4 and 28?
  26. 26.What is the HCF of 20 and 36?
  27. 27.Write 15/25 in its simplest form. =
  28. 28.Write 5/30 in its simplest form. =
  29. 29.Is 12/15 in its simplest form? (a) No (b) Yes
  30. 30.Write 27/90 in its simplest form. =
  31. 31.What is the HCF of 8 and 18?
  32. 32.What is the HCF of 9 and 30?
  33. 33.Is 15/40 in its simplest form? (a) Yes (b) No
  34. 34.Write 45/50 in its simplest form. =
  35. 35.What is the HCF of 8 and 24?
  36. 36.Is 36/40 in its simplest form? (a) Yes (b) No
  37. 37.Write 54/63 in its simplest form. =
  38. 38.What is the HCF of 40 and 64?
  39. 39.Is 12/18 in its simplest form? (a) No (b) Yes
  40. 40.What is the HCF of 18 and 20?

Answer key

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

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