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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 847 · 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 36/45 in its simplest form. =
  2. 2.Write 5/50 in its simplest form. =
  3. 3.What is the HCF of 30 and 42?
  4. 4.What is the HCF of 4 and 14?
  5. 5.Is 6/48 in its simplest form? (a) No (b) Yes
  6. 6.What is the HCF of 63 and 72?
  7. 7.What is the HCF of 20 and 28?
  8. 8.What is the HCF of 27 and 90?
  9. 9.Write 18/20 in its simplest form. =
  10. 10.What is the HCF of 6 and 30?
  11. 11.Is 8/10 in its simplest form? (a) No (b) Yes
  12. 12.Is 5/50 in its simplest form? (a) Yes (b) No
  13. 13.Write 6/42 in its simplest form. =
  14. 14.Write 25/40 in its simplest form. =
  15. 15.Is 7/8 in its simplest form? (a) Yes (b) No
  16. 16.Is 2/9 in its simplest form? (a) No (b) Yes
  17. 17.Is 2/8 in its simplest form? (a) No (b) Yes
  18. 18.What is the HCF of 5 and 50?
  19. 19.Is 4/9 in its simplest form? (a) Yes (b) No
  20. 20.What is the HCF of 9 and 36?
  21. 21.What is the HCF of 8 and 18?
  22. 22.Is 35/40 in its simplest form? (a) No (b) Yes
  23. 23.Write 3/12 in its simplest form. =
  24. 24.Write 35/50 in its simplest form. =
  25. 25.Is 5/8 in its simplest form? (a) Yes (b) No
  26. 26.Is 3/5 in its simplest form? (a) Yes (b) No
  27. 27.What is the HCF of 30 and 54?
  28. 28.Write 6/8 in its simplest form. =
  29. 29.Is 7/9 in its simplest form? (a) No (b) Yes
  30. 30.What is the HCF of 40 and 48?
  31. 31.Is 1/4 in its simplest form? (a) Yes (b) No
  32. 32.Write 15/24 in its simplest form. =
  33. 33.Write 16/28 in its simplest form. =
  34. 34.What is the HCF of 2 and 18?
  35. 35.What is the HCF of 4 and 32?
  36. 36.Is 4/36 in its simplest form? (a) No (b) Yes
  37. 37.Write 10/12 in its simplest form. =
  38. 38.Is 1/6 in its simplest form? (a) No (b) Yes
  39. 39.Is 4/7 in its simplest form? (a) No (b) Yes
  40. 40.Is 3/7 in its simplest form? (a) Yes (b) No

Answer key

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

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