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Subtract Fractions with Different Denominators Worksheet

Fractions lesson 16: Subtracting fractions: different denominators · Set 662 · 40 questions
TalentJR

The method (LCM, then take away): Find the LCM of the two bottom numbers. Change each fraction to that bottom number. Subtract the tops, keep the bottom, and simplify.

NameDateTime takenScore ___ / 40
  1. 1.2/3 − 5/9 =
  2. 2.3/4 − 1/3 =
  3. 3.Aarav has a ribbon 1/6 m long and cuts off 1/8 m. How long is the ribbon now (in m)? =
  4. 4.3/4 − 5/8 =
  5. 5.A bottle has 3/10 litre of juice. Arjun drinks 1/6 litre. How much juice is left (in litres)? =
  6. 6.A bottle has 3/4 litre of juice. Rohan drinks 3/5 litre. How much juice is left (in litres)? =
  7. 7.3/4 − 4/7 =
  8. 8.Arjun has a ribbon 4/5 m long and cuts off 1/4 m. How long is the ribbon now (in m)? =
  9. 9.1/5 − 1/6 =
  10. 10.7/8 − 5/6 =
  11. 11.3/4 − 3/7 =
  12. 12.A tank is 9/10 full of water. Then water filling 1/2 of the tank is used. What fraction of the tank is full now? =
  13. 13.2/3 − 2/9 =
  14. 14.5/9 − 1/3 =
  15. 15.Diya has a ribbon 5/6 m long and cuts off 1/9 m. How long is the ribbon now (in m)? =
  16. 16.8/9 − 1/3 =
  17. 17.Riya has a ribbon 5/6 m long and cuts off 5/9 m. How long is the ribbon now (in m)? =
  18. 18.3/4 − 1/10 =
  19. 19.A bottle has 2/5 litre of juice. Diya drinks 1/10 litre. How much juice is left (in litres)? =
  20. 20.2/3 − 3/8 =
  21. 21.A bottle has 3/4 litre of juice. Tara drinks 1/3 litre. How much juice is left (in litres)? =
  22. 22.6/7 − 1/2 =
  23. 23.5/6 − 1/9 =
  24. 24.Sara has a ribbon 5/7 m long and cuts off 1/4 m. How long is the ribbon now (in m)? =
  25. 25.4/7 − 1/2 =
  26. 26.Arjun has a ribbon 5/8 m long and cuts off 1/6 m. How long is the ribbon now (in m)? =
  27. 27.A bottle has 1/5 litre of juice. Ishaan drinks 1/10 litre. How much juice is left (in litres)? =
  28. 28.8/9 − 2/3 =
  29. 29.1/3 − 1/7 =
  30. 30.Tara has a ribbon 1/2 m long and cuts off 2/7 m. How long is the ribbon now (in m)? =
  31. 31.Tara has a ribbon 6/7 m long and cuts off 2/3 m. How long is the ribbon now (in m)? =
  32. 32.A bottle has 3/8 litre of juice. Riya drinks 1/4 litre. How much juice is left (in litres)? =
  33. 33.4/5 − 3/4 =
  34. 34.Sara has a ribbon 2/3 m long and cuts off 2/9 m. How long is the ribbon now (in m)? =
  35. 35.Rohan has a ribbon 5/6 m long and cuts off 4/9 m. How long is the ribbon now (in m)? =
  36. 36.7/8 − 1/3 =
  37. 37.3/7 − 1/4 =
  38. 38.2/3 − 2/7 =
  39. 39.3/4 − 7/10 =
  40. 40.2/3 − 1/8 =

Answer key

  1. 1/9
  2. 5/12
  3. 1/24
  4. 1/8
  5. 2/15
  6. 3/20
  7. 5/28
  8. 11/20
  9. 1/30
  10. 1/24
  11. 9/28
  12. 2/5
  13. 4/9
  14. 2/9
  15. 13/18
  16. 5/9
  17. 5/18
  18. 13/20
  19. 3/10
  20. 7/24
  21. 5/12
  22. 5/14
  23. 13/18
  24. 13/28
  25. 1/14
  26. 11/24
  27. 1/10
  28. 2/9
  29. 4/21
  30. 3/14
  31. 4/21
  32. 1/8
  33. 1/20
  34. 4/9
  35. 7/18
  36. 13/24
  37. 5/28
  38. 8/21
  39. 1/20
  40. 13/24

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