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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 207 · 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.Is 6/21 in its simplest form? (a) Yes (b) No
  2. 2.What is the HCF of 16 and 24?
  3. 3.What is the HCF of 21 and 35?
  4. 4.Is 8/9 in its simplest form? (a) Yes (b) No
  5. 5.What is the HCF of 54 and 60?
  6. 6.Is 54/60 in its simplest form? (a) No (b) Yes
  7. 7.What is the HCF of 4 and 24?
  8. 8.Write 12/21 in its simplest form. =
  9. 9.Write 5/10 in its simplest form. =
  10. 10.Write 6/60 in its simplest form. =
  11. 11.What is the HCF of 28 and 40?
  12. 12.Write 6/48 in its simplest form. =
  13. 13.What is the HCF of 30 and 42?
  14. 14.What is the HCF of 10 and 14?
  15. 15.Write 40/56 in its simplest form. =
  16. 16.Is 20/45 in its simplest form? (a) No (b) Yes
  17. 17.What is the HCF of 6 and 24?
  18. 18.What is the HCF of 3 and 9?
  19. 19.What is the HCF of 2 and 8?
  20. 20.Write 15/35 in its simplest form. =
  21. 21.Write 16/40 in its simplest form. =
  22. 22.What is the HCF of 8 and 40?
  23. 23.Write 49/63 in its simplest form. =
  24. 24.What is the HCF of 30 and 36?
  25. 25.What is the HCF of 4 and 6?
  26. 26.Is 4/8 in its simplest form? (a) No (b) Yes
  27. 27.Is 15/35 in its simplest form? (a) Yes (b) No
  28. 28.Write 6/10 in its simplest form. =
  29. 29.Is 7/10 in its simplest form? (a) Yes (b) No
  30. 30.What is the HCF of 28 and 32?
  31. 31.Write 30/35 in its simplest form. =
  32. 32.What is the HCF of 18 and 27?
  33. 33.Is 1/6 in its simplest form? (a) Yes (b) No
  34. 34.Write 8/72 in its simplest form. =
  35. 35.Write 9/27 in its simplest form. =
  36. 36.Is 7/9 in its simplest form? (a) Yes (b) No
  37. 37.Is 9/10 in its simplest form? (a) Yes (b) No
  38. 38.What is the HCF of 20 and 36?
  39. 39.Write 18/30 in its simplest form. =
  40. 40.Is 16/36 in its simplest form? (a) No (b) Yes

Answer key

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

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