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Subtract Fractions with Different Denominators Worksheet

Fractions lesson 16: Subtracting fractions: different denominators · Set 292 · 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.A bottle has 2/3 litre of juice. Meera drinks 1/7 litre. How much juice is left (in litres)? =
  2. 2.Aarav has a ribbon 1/6 m long and cuts off 1/9 m. How long is the ribbon now (in m)? =
  3. 3.1/2 − 1/3 =
  4. 4.1/6 − 1/8 =
  5. 5.3/5 − 1/10 =
  6. 6.Anaya has a ribbon 5/9 m long and cuts off 1/3 m. How long is the ribbon now (in m)? =
  7. 7.A tank is 1/3 full of water. Then water filling 1/7 of the tank is used. What fraction of the tank is full now? =
  8. 8.Sara has a ribbon 2/3 m long and cuts off 2/7 m. How long is the ribbon now (in m)? =
  9. 9.7/8 − 3/4 =
  10. 10.3/7 − 1/3 =
  11. 11.3/4 − 1/7 =
  12. 12.Rohan has a ribbon 7/10 m long and cuts off 2/5 m. How long is the ribbon now (in m)? =
  13. 13.A tank is 2/3 full of water. Then water filling 4/9 of the tank is used. What fraction of the tank is full now? =
  14. 14.A tank is 7/8 full of water. Then water filling 2/3 of the tank is used. What fraction of the tank is full now? =
  15. 15.2/9 − 1/6 =
  16. 16.3/5 − 1/6 =
  17. 17.5/9 − 1/3 =
  18. 18.5/8 − 1/4 =
  19. 19.5/8 − 1/6 =
  20. 20.5/6 − 3/8 =
  21. 21.1/4 − 1/7 =
  22. 22.5/6 − 1/9 =
  23. 23.1/5 − 1/6 =
  24. 24.Kabir has a ribbon 4/7 m long and cuts off 1/4 m. How long is the ribbon now (in m)? =
  25. 25.A tank is 1/3 full of water. Then water filling 3/10 of the tank is used. What fraction of the tank is full now? =
  26. 26.5/8 − 1/2 =
  27. 27.Aarav has a ribbon 1/2 m long and cuts off 2/9 m. How long is the ribbon now (in m)? =
  28. 28.Ishaan has a ribbon 2/3 m long and cuts off 2/5 m. How long is the ribbon now (in m)? =
  29. 29.Meera has a ribbon 3/8 m long and cuts off 1/3 m. How long is the ribbon now (in m)? =
  30. 30.Diya has a ribbon 3/4 m long and cuts off 3/5 m. How long is the ribbon now (in m)? =
  31. 31.Rohan has a ribbon 3/4 m long and cuts off 2/5 m. How long is the ribbon now (in m)? =
  32. 32.A tank is 2/5 full of water. Then water filling 1/6 of the tank is used. What fraction of the tank is full now? =
  33. 33.A bottle has 1/2 litre of juice. Diya drinks 1/9 litre. How much juice is left (in litres)? =
  34. 34.A bottle has 6/7 litre of juice. Rohan drinks 1/3 litre. How much juice is left (in litres)? =
  35. 35.7/10 − 1/6 =
  36. 36.Riya has a ribbon 1/2 m long and cuts off 1/5 m. How long is the ribbon now (in m)? =
  37. 37.5/6 − 5/9 =
  38. 38.A bottle has 3/5 litre of juice. Kabir drinks 1/10 litre. How much juice is left (in litres)? =
  39. 39.2/3 − 1/8 =
  40. 40.A tank is 1/3 full of water. Then water filling 2/9 of the tank is used. What fraction of the tank is full now? =

Answer key

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

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