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Subtract Fractions with Different Denominators Worksheet

Fractions lesson 16: Subtracting fractions: different denominators · Set 382 · 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 tank is 1/6 full of water. Then water filling 1/9 of the tank is used. What fraction of the tank is full now? =
  2. 2.2/3 − 1/6 =
  3. 3.7/8 − 3/4 =
  4. 4.1/4 − 1/5 =
  5. 5.A bottle has 2/3 litre of juice. Sara drinks 2/7 litre. How much juice is left (in litres)? =
  6. 6.A bottle has 2/3 litre of juice. Meera drinks 1/5 litre. How much juice is left (in litres)? =
  7. 7.A tank is 7/8 full of water. Then water filling 5/6 of the tank is used. What fraction of the tank is full now? =
  8. 8.1/2 − 1/5 =
  9. 9.1/5 − 1/6 =
  10. 10.A tank is 4/5 full of water. Then water filling 3/4 of the tank is used. What fraction of the tank is full now? =
  11. 11.7/9 − 1/2 =
  12. 12.A tank is 5/6 full of water. Then water filling 5/8 of the tank is used. What fraction of the tank is full now? =
  13. 13.1/3 − 1/8 =
  14. 14.A tank is 7/9 full of water. Then water filling 1/3 of the tank is used. What fraction of the tank is full now? =
  15. 15.Rohan has a ribbon 6/7 m long and cuts off 2/3 m. How long is the ribbon now (in m)? =
  16. 16.A bottle has 3/4 litre of juice. Tara drinks 2/5 litre. How much juice is left (in litres)? =
  17. 17.Kabir has a ribbon 4/5 m long and cuts off 3/4 m. How long is the ribbon now (in m)? =
  18. 18.5/6 − 1/4 =
  19. 19.8/9 − 1/2 =
  20. 20.6/7 − 1/4 =
  21. 21.3/4 − 3/7 =
  22. 22.Meera has a ribbon 2/3 m long and cuts off 1/9 m. How long is the ribbon now (in m)? =
  23. 23.3/5 − 1/3 =
  24. 24.2/3 − 4/9 =
  25. 25.A bottle has 7/8 litre of juice. Aarav drinks 1/4 litre. How much juice is left (in litres)? =
  26. 26.2/3 − 3/5 =
  27. 27.A bottle has 5/6 litre of juice. Sara drinks 7/9 litre. How much juice is left (in litres)? =
  28. 28.Aarav has a ribbon 4/5 m long and cuts off 1/3 m. How long is the ribbon now (in m)? =
  29. 29.A tank is 3/4 full of water. Then water filling 3/10 of the tank is used. What fraction of the tank is full now? =
  30. 30.5/6 − 1/5 =
  31. 31.A tank is 3/5 full of water. Then water filling 1/3 of the tank is used. What fraction of the tank is full now? =
  32. 32.2/5 − 1/10 =
  33. 33.Anaya has a ribbon 4/5 m long and cuts off 7/10 m. How long is the ribbon now (in m)? =
  34. 34.3/4 − 2/5 =
  35. 35.1/4 − 1/7 =
  36. 36.Vihaan has a ribbon 1/6 m long and cuts off 1/9 m. How long is the ribbon now (in m)? =
  37. 37.Aarav has a ribbon 9/10 m long and cuts off 3/5 m. How long is the ribbon now (in m)? =
  38. 38.A bottle has 1/4 litre of juice. Meera drinks 1/10 litre. How much juice is left (in litres)? =
  39. 39.9/10 − 2/3 =
  40. 40.7/8 − 1/4 =

Answer key

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

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