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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 10 · 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 30/42 in its simplest form? (a) No (b) Yes
  2. 2.Write 12/32 in its simplest form. =
  3. 3.What is the HCF of 6 and 30?
  4. 4.Write 14/63 in its simplest form. =
  5. 5.What is the HCF of 12 and 27?
  6. 6.What is the HCF of 10 and 18?
  7. 7.What is the HCF of 6 and 15?
  8. 8.What is the HCF of 6 and 12?
  9. 9.Write 9/81 in its simplest form. =
  10. 10.Write 4/10 in its simplest form. =
  11. 11.Write 35/40 in its simplest form. =
  12. 12.Write 25/30 in its simplest form. =
  13. 13.Write 9/63 in its simplest form. =
  14. 14.Write 4/6 in its simplest form. =
  15. 15.What is the HCF of 35 and 56?
  16. 16.What is the HCF of 14 and 16?
  17. 17.What is the HCF of 15 and 21?
  18. 18.Is 4/18 in its simplest form? (a) Yes (b) No
  19. 19.Write 21/70 in its simplest form. =
  20. 20.Is 36/42 in its simplest form? (a) Yes (b) No
  21. 21.Write 28/49 in its simplest form. =
  22. 22.What is the HCF of 40 and 72?
  23. 23.What is the HCF of 15 and 35?
  24. 24.What is the HCF of 16 and 72?
  25. 25.Is 5/9 in its simplest form? (a) No (b) Yes
  26. 26.Is 3/7 in its simplest form? (a) No (b) Yes
  27. 27.Write 7/56 in its simplest form. =
  28. 28.Write 6/60 in its simplest form. =
  29. 29.What is the HCF of 18 and 21?
  30. 30.Write 4/32 in its simplest form. =
  31. 31.Write 2/18 in its simplest form. =
  32. 32.Write 9/18 in its simplest form. =
  33. 33.What is the HCF of 18 and 48?
  34. 34.Write 12/28 in its simplest form. =
  35. 35.Is 2/6 in its simplest form? (a) No (b) Yes
  36. 36.Is 30/54 in its simplest form? (a) No (b) Yes
  37. 37.What is the HCF of 5 and 50?
  38. 38.What is the HCF of 8 and 48?
  39. 39.What is the HCF of 18 and 60?
  40. 40.Is 6/60 in its simplest form? (a) No (b) Yes

Answer key

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

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