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Subtract Fractions with Different Denominators Worksheet

Fractions lesson 16: Subtracting fractions: different denominators · Set 549 · 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. Aarav drinks 1/6 litre. How much juice is left (in litres)? =
  2. 2.Aarav has a ribbon 2/3 m long and cuts off 2/7 m. How long is the ribbon now (in m)? =
  3. 3.2/3 − 5/9 =
  4. 4.3/4 − 1/10 =
  5. 5.A bottle has 3/4 litre of juice. Riya drinks 1/2 litre. How much juice is left (in litres)? =
  6. 6.A bottle has 5/6 litre of juice. Meera drinks 3/8 litre. How much juice is left (in litres)? =
  7. 7.A tank is 3/4 full of water. Then water filling 5/7 of the tank is used. What fraction of the tank is full now? =
  8. 8.8/9 − 1/6 =
  9. 9.A bottle has 5/6 litre of juice. Aarav drinks 2/3 litre. How much juice is left (in litres)? =
  10. 10.8/9 − 2/3 =
  11. 11.A bottle has 1/6 litre of juice. Kabir drinks 1/10 litre. How much juice is left (in litres)? =
  12. 12.1/2 − 2/7 =
  13. 13.1/4 − 1/6 =
  14. 14.3/10 − 1/5 =
  15. 15.A tank is 4/5 full of water. Then water filling 7/10 of the tank is used. What fraction of the tank is full now? =
  16. 16.Meera has a ribbon 4/7 m long and cuts off 1/2 m. How long is the ribbon now (in m)? =
  17. 17.A bottle has 2/3 litre of juice. Rohan drinks 2/9 litre. How much juice is left (in litres)? =
  18. 18.A tank is 1/2 full of water. Then water filling 3/7 of the tank is used. What fraction of the tank is full now? =
  19. 19.9/10 − 1/3 =
  20. 20.A tank is 1/2 full of water. Then water filling 3/10 of the tank is used. What fraction of the tank is full now? =
  21. 21.A bottle has 4/5 litre of juice. Kabir drinks 2/3 litre. How much juice is left (in litres)? =
  22. 22.1/3 − 2/9 =
  23. 23.A tank is 2/3 full of water. Then water filling 3/5 of the tank is used. What fraction of the tank is full now? =
  24. 24.Meera has a ribbon 2/3 m long and cuts off 2/9 m. How long is the ribbon now (in m)? =
  25. 25.1/3 − 1/7 =
  26. 26.Rohan has a ribbon 2/3 m long and cuts off 5/9 m. How long is the ribbon now (in m)? =
  27. 27.Aarav has a ribbon 5/8 m long and cuts off 1/2 m. How long is the ribbon now (in m)? =
  28. 28.3/8 − 1/4 =
  29. 29.6/7 − 1/4 =
  30. 30.1/3 − 2/7 =
  31. 31.Meera has a ribbon 1/2 m long and cuts off 4/9 m. How long is the ribbon now (in m)? =
  32. 32.3/4 − 5/8 =
  33. 33.A bottle has 5/6 litre of juice. Kabir drinks 4/5 litre. How much juice is left (in litres)? =
  34. 34.A bottle has 4/9 litre of juice. Diya drinks 1/3 litre. How much juice is left (in litres)? =
  35. 35.Diya has a ribbon 1/3 m long and cuts off 2/9 m. How long is the ribbon now (in m)? =
  36. 36.3/8 − 1/3 =
  37. 37.5/6 − 4/9 =
  38. 38.1/3 − 1/9 =
  39. 39.A tank is 4/9 full of water. Then water filling 1/6 of the tank is used. What fraction of the tank is full now? =
  40. 40.1/4 − 1/10 =

Answer key

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

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