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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 928 · 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 15 and 21?
  2. 2.Write 32/72 in its simplest form. =
  3. 3.What is the HCF of 7 and 42?
  4. 4.Write 8/18 in its simplest form. =
  5. 5.Write 35/45 in its simplest form. =
  6. 6.Write 8/16 in its simplest form. =
  7. 7.Write 8/80 in its simplest form. =
  8. 8.Is 20/35 in its simplest form? (a) No (b) Yes
  9. 9.Write 27/63 in its simplest form. =
  10. 10.Is 14/18 in its simplest form? (a) Yes (b) No
  11. 11.What is the HCF of 2 and 8?
  12. 12.What is the HCF of 4 and 10?
  13. 13.Is 1/2 in its simplest form? (a) No (b) Yes
  14. 14.What is the HCF of 9 and 12?
  15. 15.Is 6/24 in its simplest form? (a) Yes (b) No
  16. 16.Write 8/14 in its simplest form. =
  17. 17.What is the HCF of 27 and 36?
  18. 18.Is 5/8 in its simplest form? (a) Yes (b) No
  19. 19.Is 2/9 in its simplest form? (a) Yes (b) No
  20. 20.Write 16/36 in its simplest form. =
  21. 21.Is 20/25 in its simplest form? (a) No (b) Yes
  22. 22.Is 6/42 in its simplest form? (a) No (b) Yes
  23. 23.Is 10/35 in its simplest form? (a) No (b) Yes
  24. 24.What is the HCF of 49 and 70?
  25. 25.What is the HCF of 24 and 40?
  26. 26.Is 28/32 in its simplest form? (a) Yes (b) No
  27. 27.What is the HCF of 21 and 27?
  28. 28.What is the HCF of 15 and 35?
  29. 29.What is the HCF of 6 and 15?
  30. 30.What is the HCF of 40 and 48?
  31. 31.Write 21/56 in its simplest form. =
  32. 32.Is 3/5 in its simplest form? (a) No (b) Yes
  33. 33.What is the HCF of 8 and 40?
  34. 34.Is 10/25 in its simplest form? (a) No (b) Yes
  35. 35.Write 3/30 in its simplest form. =
  36. 36.Write 36/81 in its simplest form. =
  37. 37.Is 9/10 in its simplest form? (a) No (b) Yes
  38. 38.Write 3/6 in its simplest form. =
  39. 39.Write 24/27 in its simplest form. =
  40. 40.What is the HCF of 20 and 36?

Answer key

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

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