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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 469 · 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 3 and 15?
  2. 2.What is the HCF of 6 and 12?
  3. 3.Write 6/8 in its simplest form. =
  4. 4.What is the HCF of 20 and 28?
  5. 5.Is 9/10 in its simplest form? (a) Yes (b) No
  6. 6.What is the HCF of 32 and 40?
  7. 7.What is the HCF of 2 and 10?
  8. 8.Is 4/10 in its simplest form? (a) No (b) Yes
  9. 9.Is 1/6 in its simplest form? (a) No (b) Yes
  10. 10.What is the HCF of 5 and 10?
  11. 11.Write 3/24 in its simplest form. =
  12. 12.What is the HCF of 15 and 18?
  13. 13.Is 10/18 in its simplest form? (a) No (b) Yes
  14. 14.Is 4/5 in its simplest form? (a) No (b) Yes
  15. 15.Write 16/18 in its simplest form. =
  16. 16.Write 12/15 in its simplest form. =
  17. 17.Is 1/10 in its simplest form? (a) Yes (b) No
  18. 18.What is the HCF of 9 and 30?
  19. 19.Write 45/81 in its simplest form. =
  20. 20.Write 5/25 in its simplest form. =
  21. 21.Is 5/6 in its simplest form? (a) No (b) Yes
  22. 22.Write 8/64 in its simplest form. =
  23. 23.Write 15/35 in its simplest form. =
  24. 24.What is the HCF of 18 and 21?
  25. 25.What is the HCF of 9 and 24?
  26. 26.What is the HCF of 35 and 42?
  27. 27.Write 28/63 in its simplest form. =
  28. 28.What is the HCF of 5 and 35?
  29. 29.What is the HCF of 35 and 56?
  30. 30.Is 2/14 in its simplest form? (a) Yes (b) No
  31. 31.Is 1/3 in its simplest form? (a) No (b) Yes
  32. 32.Write 21/56 in its simplest form. =
  33. 33.Is 10/16 in its simplest form? (a) No (b) Yes
  34. 34.Write 27/30 in its simplest form. =
  35. 35.What is the HCF of 49 and 56?
  36. 36.Write 3/15 in its simplest form. =
  37. 37.What is the HCF of 18 and 48?
  38. 38.Write 49/56 in its simplest form. =
  39. 39.Is 5/25 in its simplest form? (a) No (b) Yes
  40. 40.Is 5/50 in its simplest form? (a) No (b) Yes

Answer key

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

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