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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 254 · 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 45?
  2. 2.Is 2/7 in its simplest form? (a) Yes (b) No
  3. 3.What is the HCF of 2 and 14?
  4. 4.Is 45/50 in its simplest form? (a) Yes (b) No
  5. 5.Is 10/14 in its simplest form? (a) No (b) Yes
  6. 6.Write 5/50 in its simplest form. =
  7. 7.Is 5/40 in its simplest form? (a) No (b) Yes
  8. 8.Is 1/8 in its simplest form? (a) No (b) Yes
  9. 9.Write 28/36 in its simplest form. =
  10. 10.Is 27/30 in its simplest form? (a) Yes (b) No
  11. 11.What is the HCF of 21 and 28?
  12. 12.What is the HCF of 36 and 45?
  13. 13.Write 7/14 in its simplest form. =
  14. 14.Write 36/63 in its simplest form. =
  15. 15.Is 9/10 in its simplest form? (a) Yes (b) No
  16. 16.Is 6/9 in its simplest form? (a) Yes (b) No
  17. 17.Write 12/28 in its simplest form. =
  18. 18.Write 7/42 in its simplest form. =
  19. 19.Is 1/5 in its simplest form? (a) Yes (b) No
  20. 20.Write 14/35 in its simplest form. =
  21. 21.Write 14/20 in its simplest form. =
  22. 22.What is the HCF of 36 and 40?
  23. 23.Write 16/40 in its simplest form. =
  24. 24.Is 2/5 in its simplest form? (a) No (b) Yes
  25. 25.Write 35/56 in its simplest form. =
  26. 26.What is the HCF of 8 and 40?
  27. 27.What is the HCF of 64 and 72?
  28. 28.What is the HCF of 20 and 45?
  29. 29.What is the HCF of 24 and 28?
  30. 30.Is 5/10 in its simplest form? (a) Yes (b) No
  31. 31.What is the HCF of 35 and 40?
  32. 32.Is 16/36 in its simplest form? (a) No (b) Yes
  33. 33.Is 48/54 in its simplest form? (a) No (b) Yes
  34. 34.What is the HCF of 12 and 18?
  35. 35.What is the HCF of 7 and 14?
  36. 36.What is the HCF of 36 and 42?
  37. 37.Is 18/20 in its simplest form? (a) No (b) Yes
  38. 38.Write 16/24 in its simplest form. =
  39. 39.What is the HCF of 16 and 24?
  40. 40.What is the HCF of 30 and 36?

Answer key

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

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