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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 167 · 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 2 and 16?
  2. 2.Is 1/2 in its simplest form? (a) Yes (b) No
  3. 3.Write 9/90 in its simplest form. =
  4. 4.Is 48/54 in its simplest form? (a) No (b) Yes
  5. 5.Is 4/7 in its simplest form? (a) No (b) Yes
  6. 6.What is the HCF of 14 and 18?
  7. 7.What is the HCF of 45 and 54?
  8. 8.What is the HCF of 35 and 56?
  9. 9.Is 3/4 in its simplest form? (a) Yes (b) No
  10. 10.What is the HCF of 28 and 40?
  11. 11.What is the HCF of 16 and 56?
  12. 12.Is 42/48 in its simplest form? (a) No (b) Yes
  13. 13.Is 1/3 in its simplest form? (a) No (b) Yes
  14. 14.What is the HCF of 4 and 24?
  15. 15.What is the HCF of 12 and 54?
  16. 16.Write 18/27 in its simplest form. =
  17. 17.Is 4/40 in its simplest form? (a) Yes (b) No
  18. 18.What is the HCF of 30 and 48?
  19. 19.What is the HCF of 8 and 32?
  20. 20.Is 7/10 in its simplest form? (a) Yes (b) No
  21. 21.Write 24/56 in its simplest form. =
  22. 22.Write 15/25 in its simplest form. =
  23. 23.What is the HCF of 7 and 42?
  24. 24.Write 9/45 in its simplest form. =
  25. 25.Is 40/45 in its simplest form? (a) Yes (b) No
  26. 26.Write 6/20 in its simplest form. =
  27. 27.Write 14/16 in its simplest form. =
  28. 28.Write 10/14 in its simplest form. =
  29. 29.What is the HCF of 3 and 18?
  30. 30.Is 16/36 in its simplest form? (a) No (b) Yes
  31. 31.What is the HCF of 9 and 63?
  32. 32.Write 5/15 in its simplest form. =
  33. 33.What is the HCF of 35 and 45?
  34. 34.Write 42/49 in its simplest form. =
  35. 35.Write 2/4 in its simplest form. =
  36. 36.Is 2/3 in its simplest form? (a) No (b) Yes
  37. 37.What is the HCF of 24 and 27?
  38. 38.Write 8/24 in its simplest form. =
  39. 39.Is 18/21 in its simplest form? (a) No (b) Yes
  40. 40.Is 6/15 in its simplest form? (a) No (b) Yes

Answer key

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

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