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Subtract Fractions with Different Denominators Worksheet

Fractions lesson 16: Subtracting fractions: different denominators · Set 265 · 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 4/9 full of water. Then water filling 1/3 of the tank is used. What fraction of the tank is full now? =
  2. 2.A tank is 3/4 full of water. Then water filling 3/7 of the tank is used. What fraction of the tank is full now? =
  3. 3.A bottle has 6/7 litre of juice. Aarav drinks 1/4 litre. How much juice is left (in litres)? =
  4. 4.3/4 − 2/5 =
  5. 5.5/6 − 2/9 =
  6. 6.4/9 − 1/3 =
  7. 7.Diya has a ribbon 4/5 m long and cuts off 3/4 m. How long is the ribbon now (in m)? =
  8. 8.Meera has a ribbon 3/4 m long and cuts off 2/7 m. How long is the ribbon now (in m)? =
  9. 9.A bottle has 7/8 litre of juice. Meera drinks 2/3 litre. How much juice is left (in litres)? =
  10. 10.A bottle has 5/6 litre of juice. Rohan drinks 5/8 litre. How much juice is left (in litres)? =
  11. 11.6/7 − 1/3 =
  12. 12.4/5 − 2/3 =
  13. 13.8/9 − 1/2 =
  14. 14.A bottle has 5/6 litre of juice. Vihaan drinks 1/9 litre. How much juice is left (in litres)? =
  15. 15.Arjun has a ribbon 1/3 m long and cuts off 1/8 m. How long is the ribbon now (in m)? =
  16. 16.1/4 − 1/5 =
  17. 17.A bottle has 1/3 litre of juice. Sara drinks 3/10 litre. How much juice is left (in litres)? =
  18. 18.A bottle has 1/2 litre of juice. Riya drinks 1/6 litre. How much juice is left (in litres)? =
  19. 19.7/10 − 1/2 =
  20. 20.Arjun has a ribbon 1/6 m long and cuts off 1/9 m. How long is the ribbon now (in m)? =
  21. 21.A bottle has 5/8 litre of juice. Rohan drinks 1/4 litre. How much juice is left (in litres)? =
  22. 22.5/8 − 1/6 =
  23. 23.Riya has a ribbon 2/5 m long and cuts off 1/3 m. How long is the ribbon now (in m)? =
  24. 24.8/9 − 1/6 =
  25. 25.4/7 − 1/2 =
  26. 26.3/5 − 3/10 =
  27. 27.5/8 − 1/2 =
  28. 28.5/6 − 2/3 =
  29. 29.A bottle has 7/10 litre of juice. Anaya drinks 1/6 litre. How much juice is left (in litres)? =
  30. 30.A bottle has 2/5 litre of juice. Sara drinks 3/10 litre. How much juice is left (in litres)? =
  31. 31.8/9 − 2/3 =
  32. 32.Kabir has a ribbon 2/3 m long and cuts off 3/10 m. How long is the ribbon now (in m)? =
  33. 33.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? =
  34. 34.4/9 − 1/6 =
  35. 35.A bottle has 1/2 litre of juice. Kabir drinks 2/9 litre. How much juice is left (in litres)? =
  36. 36.A bottle has 8/9 litre of juice. Diya drinks 2/3 litre. How much juice is left (in litres)? =
  37. 37.5/9 − 1/6 =
  38. 38.A bottle has 5/6 litre of juice. Anaya drinks 2/5 litre. How much juice is left (in litres)? =
  39. 39.A bottle has 5/7 litre of juice. Anaya drinks 2/3 litre. How much juice is left (in litres)? =
  40. 40.5/6 − 1/9 =

Answer key

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

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