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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 956 · 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.Write 32/40 in its simplest form. =
  2. 2.Is 6/42 in its simplest form? (a) Yes (b) No
  3. 3.Write 7/63 in its simplest form. =
  4. 4.Is 20/32 in its simplest form? (a) Yes (b) No
  5. 5.Is 36/42 in its simplest form? (a) Yes (b) No
  6. 6.What is the HCF of 9 and 18?
  7. 7.Is 35/45 in its simplest form? (a) No (b) Yes
  8. 8.Is 3/4 in its simplest form? (a) Yes (b) No
  9. 9.Write 15/21 in its simplest form. =
  10. 10.Is 10/25 in its simplest form? (a) Yes (b) No
  11. 11.What is the HCF of 4 and 36?
  12. 12.What is the HCF of 5 and 50?
  13. 13.What is the HCF of 6 and 8?
  14. 14.Is 25/30 in its simplest form? (a) Yes (b) No
  15. 15.Write 9/12 in its simplest form. =
  16. 16.Write 2/16 in its simplest form. =
  17. 17.Write 24/27 in its simplest form. =
  18. 18.Write 3/9 in its simplest form. =
  19. 19.What is the HCF of 16 and 40?
  20. 20.What is the HCF of 42 and 54?
  21. 21.Is 3/6 in its simplest form? (a) Yes (b) No
  22. 22.What is the HCF of 12 and 27?
  23. 23.Is 1/3 in its simplest form? (a) Yes (b) No
  24. 24.Write 15/27 in its simplest form. =
  25. 25.Is 3/5 in its simplest form? (a) No (b) Yes
  26. 26.Write 6/14 in its simplest form. =
  27. 27.Write 8/72 in its simplest form. =
  28. 28.Write 21/35 in its simplest form. =
  29. 29.What is the HCF of 12 and 20?
  30. 30.Is 2/4 in its simplest form? (a) No (b) Yes
  31. 31.What is the HCF of 21 and 24?
  32. 32.What is the HCF of 14 and 20?
  33. 33.What is the HCF of 20 and 45?
  34. 34.What is the HCF of 15 and 24?
  35. 35.Write 21/70 in its simplest form. =
  36. 36.Is 1/7 in its simplest form? (a) No (b) Yes
  37. 37.Write 28/35 in its simplest form. =
  38. 38.Write 56/80 in its simplest form. =
  39. 39.Write 20/32 in its simplest form. =
  40. 40.Is 8/9 in its simplest form? (a) No (b) Yes

Answer key

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

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