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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 148 · 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 18?
  2. 2.Write 25/40 in its simplest form. =
  3. 3.Write 5/30 in its simplest form. =
  4. 4.Write 36/45 in its simplest form. =
  5. 5.Is 1/3 in its simplest form? (a) Yes (b) No
  6. 6.What is the HCF of 63 and 90?
  7. 7.Write 9/36 in its simplest form. =
  8. 8.Write 4/32 in its simplest form. =
  9. 9.Is 7/9 in its simplest form? (a) Yes (b) No
  10. 10.Is 5/7 in its simplest form? (a) Yes (b) No
  11. 11.What is the HCF of 6 and 10?
  12. 12.Write 15/25 in its simplest form. =
  13. 13.Write 63/90 in its simplest form. =
  14. 14.What is the HCF of 25 and 40?
  15. 15.Is 12/30 in its simplest form? (a) Yes (b) No
  16. 16.Write 56/72 in its simplest form. =
  17. 17.Is 9/15 in its simplest form? (a) No (b) Yes
  18. 18.Is 18/42 in its simplest form? (a) Yes (b) No
  19. 19.What is the HCF of 24 and 32?
  20. 20.What is the HCF of 30 and 42?
  21. 21.Is 5/9 in its simplest form? (a) No (b) Yes
  22. 22.Is 6/12 in its simplest form? (a) No (b) Yes
  23. 23.What is the HCF of 9 and 54?
  24. 24.Is 3/10 in its simplest form? (a) Yes (b) No
  25. 25.What is the HCF of 15 and 50?
  26. 26.What is the HCF of 27 and 45?
  27. 27.Is 5/8 in its simplest form? (a) Yes (b) No
  28. 28.What is the HCF of 8 and 14?
  29. 29.What is the HCF of 24 and 27?
  30. 30.What is the HCF of 21 and 70?
  31. 31.Write 35/40 in its simplest form. =
  32. 32.Is 1/5 in its simplest form? (a) Yes (b) No
  33. 33.Write 4/14 in its simplest form. =
  34. 34.Write 16/24 in its simplest form. =
  35. 35.Write 24/30 in its simplest form. =
  36. 36.What is the HCF of 16 and 72?
  37. 37.Write 35/63 in its simplest form. =
  38. 38.What is the HCF of 10 and 16?
  39. 39.Write 42/60 in its simplest form. =
  40. 40.What is the HCF of 4 and 36?

Answer key

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

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