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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 904 · 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 10 and 16?
  2. 2.Write 18/48 in its simplest form. =
  3. 3.Is 8/14 in its simplest form? (a) No (b) Yes
  4. 4.Is 20/24 in its simplest form? (a) No (b) Yes
  5. 5.Write 8/20 in its simplest form. =
  6. 6.Write 9/27 in its simplest form. =
  7. 7.What is the HCF of 28 and 36?
  8. 8.Write 28/35 in its simplest form. =
  9. 9.Is 3/8 in its simplest form? (a) No (b) Yes
  10. 10.What is the HCF of 2 and 20?
  11. 11.Write 24/28 in its simplest form. =
  12. 12.What is the HCF of 4 and 24?
  13. 13.Write 12/40 in its simplest form. =
  14. 14.Is 7/9 in its simplest form? (a) No (b) Yes
  15. 15.Is 2/8 in its simplest form? (a) No (b) Yes
  16. 16.What is the HCF of 16 and 56?
  17. 17.Write 8/56 in its simplest form. =
  18. 18.What is the HCF of 45 and 54?
  19. 19.Write 3/30 in its simplest form. =
  20. 20.Is 6/18 in its simplest form? (a) Yes (b) No
  21. 21.What is the HCF of 6 and 30?
  22. 22.Is 3/7 in its simplest form? (a) Yes (b) No
  23. 23.What is the HCF of 15 and 18?
  24. 24.What is the HCF of 8 and 12?
  25. 25.Write 18/20 in its simplest form. =
  26. 26.Write 49/70 in its simplest form. =
  27. 27.Is 15/21 in its simplest form? (a) Yes (b) No
  28. 28.Write 28/40 in its simplest form. =
  29. 29.Is 5/15 in its simplest form? (a) No (b) Yes
  30. 30.What is the HCF of 16 and 24?
  31. 31.Is 5/6 in its simplest form? (a) Yes (b) No
  32. 32.Is 7/10 in its simplest form? (a) No (b) Yes
  33. 33.What is the HCF of 15 and 27?
  34. 34.Is 1/4 in its simplest form? (a) No (b) Yes
  35. 35.Is 14/18 in its simplest form? (a) No (b) Yes
  36. 36.Write 27/45 in its simplest form. =
  37. 37.Is 1/8 in its simplest form? (a) No (b) Yes
  38. 38.What is the HCF of 18 and 48?
  39. 39.Is 5/9 in its simplest form? (a) No (b) Yes
  40. 40.Is 5/7 in its simplest form? (a) No (b) Yes

Answer key

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

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