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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 760 · 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 14 and 63?
  2. 2.What is the HCF of 5 and 15?
  3. 3.Write 15/18 in its simplest form. =
  4. 4.Is 6/7 in its simplest form? (a) No (b) Yes
  5. 5.Is 30/54 in its simplest form? (a) Yes (b) No
  6. 6.Is 4/6 in its simplest form? (a) No (b) Yes
  7. 7.What is the HCF of 4 and 6?
  8. 8.Write 14/16 in its simplest form. =
  9. 9.Write 4/10 in its simplest form. =
  10. 10.What is the HCF of 3 and 27?
  11. 11.Write 49/56 in its simplest form. =
  12. 12.Write 35/45 in its simplest form. =
  13. 13.What is the HCF of 15 and 40?
  14. 14.Is 12/28 in its simplest form? (a) No (b) Yes
  15. 15.Write 21/35 in its simplest form. =
  16. 16.What is the HCF of 3 and 6?
  17. 17.Write 2/14 in its simplest form. =
  18. 18.Write 56/63 in its simplest form. =
  19. 19.Write 8/56 in its simplest form. =
  20. 20.Is 3/5 in its simplest form? (a) Yes (b) No
  21. 21.Is 2/18 in its simplest form? (a) Yes (b) No
  22. 22.Write 48/56 in its simplest form. =
  23. 23.Is 36/40 in its simplest form? (a) Yes (b) No
  24. 24.Is 2/7 in its simplest form? (a) Yes (b) No
  25. 25.What is the HCF of 16 and 20?
  26. 26.Write 28/35 in its simplest form. =
  27. 27.Is 6/18 in its simplest form? (a) No (b) Yes
  28. 28.Is 3/4 in its simplest form? (a) Yes (b) No
  29. 29.Write 4/20 in its simplest form. =
  30. 30.Is 3/10 in its simplest form? (a) Yes (b) No
  31. 31.Write 12/14 in its simplest form. =
  32. 32.Write 8/80 in its simplest form. =
  33. 33.What is the HCF of 10 and 35?
  34. 34.What is the HCF of 7 and 42?
  35. 35.Write 15/35 in its simplest form. =
  36. 36.What is the HCF of 6 and 14?
  37. 37.What is the HCF of 45 and 50?
  38. 38.Is 6/21 in its simplest form? (a) No (b) Yes
  39. 39.Is 5/25 in its simplest form? (a) No (b) Yes
  40. 40.Is 2/3 in its simplest form? (a) No (b) Yes

Answer key

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

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