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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 589 · 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 6 and 30?
  2. 2.Write 4/16 in its simplest form. =
  3. 3.What is the HCF of 12 and 40?
  4. 4.Is 2/3 in its simplest form? (a) Yes (b) No
  5. 5.Write 3/15 in its simplest form. =
  6. 6.Write 15/40 in its simplest form. =
  7. 7.Write 21/35 in its simplest form. =
  8. 8.Write 2/8 in its simplest form. =
  9. 9.What is the HCF of 24 and 32?
  10. 10.Is 6/20 in its simplest form? (a) No (b) Yes
  11. 11.What is the HCF of 12 and 54?
  12. 12.Write 45/63 in its simplest form. =
  13. 13.What is the HCF of 56 and 72?
  14. 14.Write 7/35 in its simplest form. =
  15. 15.What is the HCF of 10 and 16?
  16. 16.What is the HCF of 12 and 28?
  17. 17.Write 4/20 in its simplest form. =
  18. 18.Write 4/36 in its simplest form. =
  19. 19.What is the HCF of 35 and 50?
  20. 20.What is the HCF of 18 and 20?
  21. 21.Write 3/27 in its simplest form. =
  22. 22.What is the HCF of 6 and 18?
  23. 23.Is 6/18 in its simplest form? (a) Yes (b) No
  24. 24.Write 24/30 in its simplest form. =
  25. 25.What is the HCF of 63 and 81?
  26. 26.Write 35/63 in its simplest form. =
  27. 27.What is the HCF of 10 and 18?
  28. 28.Write 40/56 in its simplest form. =
  29. 29.What is the HCF of 24 and 54?
  30. 30.Write 49/70 in its simplest form. =
  31. 31.Is 14/20 in its simplest form? (a) Yes (b) No
  32. 32.Write 6/24 in its simplest form. =
  33. 33.Write 35/56 in its simplest form. =
  34. 34.Write 72/81 in its simplest form. =
  35. 35.What is the HCF of 18 and 45?
  36. 36.What is the HCF of 28 and 35?
  37. 37.Is 1/6 in its simplest form? (a) Yes (b) No
  38. 38.Write 9/30 in its simplest form. =
  39. 39.Is 16/36 in its simplest form? (a) No (b) Yes
  40. 40.Is 20/35 in its simplest form? (a) No (b) Yes

Answer key

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

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