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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 730 · 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 9 and 15?
  2. 2.Is 1/2 in its simplest form? (a) Yes (b) No
  3. 3.Write 8/80 in its simplest form. =
  4. 4.What is the HCF of 9 and 72?
  5. 5.Write 15/21 in its simplest form. =
  6. 6.Write 45/63 in its simplest form. =
  7. 7.What is the HCF of 8 and 64?
  8. 8.Write 9/21 in its simplest form. =
  9. 9.Write 5/40 in its simplest form. =
  10. 10.Write 8/20 in its simplest form. =
  11. 11.Write 7/35 in its simplest form. =
  12. 12.Is 2/10 in its simplest form? (a) No (b) Yes
  13. 13.What is the HCF of 21 and 56?
  14. 14.Is 7/10 in its simplest form? (a) No (b) Yes
  15. 15.What is the HCF of 25 and 30?
  16. 16.Is 8/10 in its simplest form? (a) Yes (b) No
  17. 17.What is the HCF of 24 and 40?
  18. 18.What is the HCF of 49 and 70?
  19. 19.Is 4/7 in its simplest form? (a) Yes (b) No
  20. 20.Is 1/6 in its simplest form? (a) Yes (b) No
  21. 21.Write 56/63 in its simplest form. =
  22. 22.Is 3/7 in its simplest form? (a) No (b) Yes
  23. 23.What is the HCF of 5 and 25?
  24. 24.Write 24/32 in its simplest form. =
  25. 25.Write 8/16 in its simplest form. =
  26. 26.Write 3/24 in its simplest form. =
  27. 27.Write 15/35 in its simplest form. =
  28. 28.Write 8/10 in its simplest form. =
  29. 29.What is the HCF of 2 and 14?
  30. 30.Is 35/50 in its simplest form? (a) Yes (b) No
  31. 31.What is the HCF of 6 and 48?
  32. 32.What is the HCF of 15 and 40?
  33. 33.Write 72/80 in its simplest form. =
  34. 34.Write 10/14 in its simplest form. =
  35. 35.Is 45/50 in its simplest form? (a) No (b) Yes
  36. 36.What is the HCF of 21 and 70?
  37. 37.What is the HCF of 27 and 30?
  38. 38.What is the HCF of 18 and 48?
  39. 39.Is 3/24 in its simplest form? (a) No (b) Yes
  40. 40.Write 10/16 in its simplest form. =

Answer key

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

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