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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 759 · 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 9 and 12?
  2. 2.Is 2/6 in its simplest form? (a) No (b) Yes
  3. 3.Write 16/20 in its simplest form. =
  4. 4.Is 21/30 in its simplest form? (a) Yes (b) No
  5. 5.Is 6/7 in its simplest form? (a) Yes (b) No
  6. 6.Is 42/60 in its simplest form? (a) Yes (b) No
  7. 7.Write 6/18 in its simplest form. =
  8. 8.Write 27/45 in its simplest form. =
  9. 9.Write 3/21 in its simplest form. =
  10. 10.Is 30/48 in its simplest form? (a) No (b) Yes
  11. 11.Is 5/7 in its simplest form? (a) Yes (b) No
  12. 12.Is 1/7 in its simplest form? (a) No (b) Yes
  13. 13.What is the HCF of 24 and 32?
  14. 14.Is 6/8 in its simplest form? (a) Yes (b) No
  15. 15.Write 3/9 in its simplest form. =
  16. 16.What is the HCF of 10 and 25?
  17. 17.Is 7/10 in its simplest form? (a) No (b) Yes
  18. 18.What is the HCF of 8 and 18?
  19. 19.Is 15/18 in its simplest form? (a) Yes (b) No
  20. 20.Write 8/32 in its simplest form. =
  21. 21.Is 3/8 in its simplest form? (a) No (b) Yes
  22. 22.What is the HCF of 16 and 56?
  23. 23.Is 1/2 in its simplest form? (a) Yes (b) No
  24. 24.Write 9/72 in its simplest form. =
  25. 25.What is the HCF of 35 and 49?
  26. 26.What is the HCF of 5 and 50?
  27. 27.Is 1/10 in its simplest form? (a) Yes (b) No
  28. 28.Write 2/14 in its simplest form. =
  29. 29.Is 3/5 in its simplest form? (a) No (b) Yes
  30. 30.What is the HCF of 12 and 14?
  31. 31.Write 14/63 in its simplest form. =
  32. 32.Is 2/12 in its simplest form? (a) No (b) Yes
  33. 33.Is 7/9 in its simplest form? (a) No (b) Yes
  34. 34.What is the HCF of 6 and 16?
  35. 35.What is the HCF of 20 and 35?
  36. 36.Is 3/9 in its simplest form? (a) Yes (b) No
  37. 37.Write 6/60 in its simplest form. =
  38. 38.Write 4/8 in its simplest form. =
  39. 39.Is 16/18 in its simplest form? (a) Yes (b) No
  40. 40.What is the HCF of 28 and 36?

Answer key

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

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