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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 770 · 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 9?
  2. 2.What is the HCF of 12 and 32?
  3. 3.Is 9/12 in its simplest form? (a) No (b) Yes
  4. 4.Write 21/49 in its simplest form. =
  5. 5.What is the HCF of 4 and 6?
  6. 6.What is the HCF of 48 and 54?
  7. 7.Is 3/10 in its simplest form? (a) Yes (b) No
  8. 8.Is 12/40 in its simplest form? (a) Yes (b) No
  9. 9.What is the HCF of 54 and 60?
  10. 10.What is the HCF of 16 and 36?
  11. 11.Write 56/80 in its simplest form. =
  12. 12.Write 35/49 in its simplest form. =
  13. 13.Is 3/8 in its simplest form? (a) Yes (b) No
  14. 14.What is the HCF of 8 and 24?
  15. 15.Write 18/60 in its simplest form. =
  16. 16.What is the HCF of 27 and 36?
  17. 17.Is 1/2 in its simplest form? (a) Yes (b) No
  18. 18.What is the HCF of 30 and 35?
  19. 19.Write 56/63 in its simplest form. =
  20. 20.Write 7/35 in its simplest form. =
  21. 21.Is 14/20 in its simplest form? (a) Yes (b) No
  22. 22.Write 21/30 in its simplest form. =
  23. 23.Write 6/15 in its simplest form. =
  24. 24.Write 5/30 in its simplest form. =
  25. 25.Write 2/12 in its simplest form. =
  26. 26.Is 4/9 in its simplest form? (a) No (b) Yes
  27. 27.Is 35/50 in its simplest form? (a) No (b) Yes
  28. 28.Write 12/42 in its simplest form. =
  29. 29.Is 5/9 in its simplest form? (a) Yes (b) No
  30. 30.What is the HCF of 16 and 40?
  31. 31.What is the HCF of 49 and 56?
  32. 32.What is the HCF of 20 and 36?
  33. 33.Write 40/64 in its simplest form. =
  34. 34.Is 3/30 in its simplest form? (a) No (b) Yes
  35. 35.Is 20/32 in its simplest form? (a) Yes (b) No
  36. 36.Is 28/32 in its simplest form? (a) No (b) Yes
  37. 37.Is 16/20 in its simplest form? (a) Yes (b) No
  38. 38.What is the HCF of 2 and 6?
  39. 39.Is 7/10 in its simplest form? (a) No (b) Yes
  40. 40.Is 24/28 in its simplest form? (a) Yes (b) No

Answer key

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

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