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Subtract Fractions with Different Denominators Worksheet

Fractions lesson 16: Subtracting fractions: different denominators · Set 41 · 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. 1.5/8 − 1/3 =
  2. 2.Sara has a ribbon 4/5 m long and cuts off 3/4 m. How long is the ribbon now (in m)? =
  3. 3.8/9 − 1/2 =
  4. 4.3/4 − 1/5 =
  5. 5.5/6 − 1/8 =
  6. 6.A bottle has 2/3 litre of juice. Meera drinks 1/5 litre. How much juice is left (in litres)? =
  7. 7.Ishaan has a ribbon 3/5 m long and cuts off 1/3 m. How long is the ribbon now (in m)? =
  8. 8.A tank is 4/5 full of water. Then water filling 1/10 of the tank is used. What fraction of the tank is full now? =
  9. 9.A tank is 4/5 full of water. Then water filling 1/2 of the tank is used. What fraction of the tank is full now? =
  10. 10.A tank is 5/9 full of water. Then water filling 1/3 of the tank is used. What fraction of the tank is full now? =
  11. 11.2/5 − 3/10 =
  12. 12.Diya has a ribbon 1/2 m long and cuts off 1/7 m. How long is the ribbon now (in m)? =
  13. 13.A bottle has 2/3 litre of juice. Diya drinks 5/9 litre. How much juice is left (in litres)? =
  14. 14.5/6 − 2/3 =
  15. 15.A tank is 5/6 full of water. Then water filling 3/10 of the tank is used. What fraction of the tank is full now? =
  16. 16.4/7 − 1/3 =
  17. 17.2/3 − 1/6 =
  18. 18.A bottle has 7/8 litre of juice. Aarav drinks 3/4 litre. How much juice is left (in litres)? =
  19. 19.Ishaan has a ribbon 7/9 m long and cuts off 1/6 m. How long is the ribbon now (in m)? =
  20. 20.A bottle has 1/6 litre of juice. Arjun drinks 1/9 litre. How much juice is left (in litres)? =
  21. 21.1/2 − 2/9 =
  22. 22.2/3 − 2/5 =
  23. 23.2/5 − 1/3 =
  24. 24.Kabir has a ribbon 9/10 m long and cuts off 3/4 m. How long is the ribbon now (in m)? =
  25. 25.Meera has a ribbon 1/2 m long and cuts off 4/9 m. How long is the ribbon now (in m)? =
  26. 26.Arjun has a ribbon 7/9 m long and cuts off 1/6 m. How long is the ribbon now (in m)? =
  27. 27.Anaya has a ribbon 5/9 m long and cuts off 1/3 m. How long is the ribbon now (in m)? =
  28. 28.A tank is 9/10 full of water. Then water filling 1/4 of the tank is used. What fraction of the tank is full now? =
  29. 29.5/6 − 1/4 =
  30. 30.Riya has a ribbon 1/3 m long and cuts off 1/10 m. How long is the ribbon now (in m)? =
  31. 31.1/3 − 2/7 =
  32. 32.1/2 − 1/3 =
  33. 33.6/7 − 1/2 =
  34. 34.A bottle has 2/3 litre of juice. Ishaan drinks 3/5 litre. How much juice is left (in litres)? =
  35. 35.3/7 − 1/3 =
  36. 36.Diya has a ribbon 9/10 m long and cuts off 1/3 m. How long is the ribbon now (in m)? =
  37. 37.2/3 − 1/5 =
  38. 38.1/2 − 3/7 =
  39. 39.5/9 − 1/6 =
  40. 40.A bottle has 2/7 litre of juice. Aarav drinks 1/4 litre. How much juice is left (in litres)? =

Answer key

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

Free fractions lessons, practice and worksheets at talentjr.in/fractions-for-kids