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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 776 · 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 20 and 32?
  2. 2.Write 24/64 in its simplest form. =
  3. 3.What is the HCF of 8 and 24?
  4. 4.Write 3/18 in its simplest form. =
  5. 5.Is 5/7 in its simplest form? (a) Yes (b) No
  6. 6.Write 15/21 in its simplest form. =
  7. 7.Write 8/28 in its simplest form. =
  8. 8.What is the HCF of 4 and 8?
  9. 9.Write 14/21 in its simplest form. =
  10. 10.Write 35/63 in its simplest form. =
  11. 11.Is 30/35 in its simplest form? (a) Yes (b) No
  12. 12.What is the HCF of 4 and 18?
  13. 13.Is 1/10 in its simplest form? (a) No (b) Yes
  14. 14.Write 5/25 in its simplest form. =
  15. 15.What is the HCF of 12 and 32?
  16. 16.Is 8/9 in its simplest form? (a) Yes (b) No
  17. 17.Is 4/5 in its simplest form? (a) No (b) Yes
  18. 18.Write 20/35 in its simplest form. =
  19. 19.Write 3/24 in its simplest form. =
  20. 20.What is the HCF of 28 and 35?
  21. 21.Is 4/24 in its simplest form? (a) Yes (b) No
  22. 22.Is 4/16 in its simplest form? (a) Yes (b) No
  23. 23.What is the HCF of 6 and 12?
  24. 24.Write 10/35 in its simplest form. =
  25. 25.Is 6/20 in its simplest form? (a) No (b) Yes
  26. 26.What is the HCF of 16 and 28?
  27. 27.Is 5/8 in its simplest form? (a) No (b) Yes
  28. 28.Write 42/60 in its simplest form. =
  29. 29.Write 4/24 in its simplest form. =
  30. 30.Write 5/30 in its simplest form. =
  31. 31.Write 15/35 in its simplest form. =
  32. 32.Is 4/7 in its simplest form? (a) Yes (b) No
  33. 33.Write 63/81 in its simplest form. =
  34. 34.Is 1/5 in its simplest form? (a) Yes (b) No
  35. 35.What is the HCF of 45 and 72?
  36. 36.Write 30/36 in its simplest form. =
  37. 37.What is the HCF of 9 and 63?
  38. 38.Write 8/64 in its simplest form. =
  39. 39.Is 1/8 in its simplest form? (a) No (b) Yes
  40. 40.Is 10/35 in its simplest form? (a) No (b) Yes

Answer key

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

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