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Subtract Fractions with Different Denominators Worksheet

Fractions lesson 16: Subtracting fractions: different denominators · Set 652 · 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. Rohan drinks 1/9 litre. How much juice is left (in litres)? =
  2. 2.2/3 − 2/5 =
  3. 3.Arjun has a ribbon 4/9 m long and cuts off 1/6 m. How long is the ribbon now (in m)? =
  4. 4.Vihaan has a ribbon 2/5 m long and cuts off 1/3 m. How long is the ribbon now (in m)? =
  5. 5.3/4 − 2/5 =
  6. 6.A bottle has 3/8 litre of juice. Sara drinks 1/3 litre. How much juice is left (in litres)? =
  7. 7.5/6 − 1/8 =
  8. 8.A tank is 7/10 full of water. Then water filling 2/3 of the tank is used. What fraction of the tank is full now? =
  9. 9.1/3 − 1/5 =
  10. 10.Kabir has a ribbon 9/10 m long and cuts off 1/6 m. How long is the ribbon now (in m)? =
  11. 11.5/6 − 2/5 =
  12. 12.A tank is 3/7 full of water. Then water filling 1/4 of the tank is used. What fraction of the tank is full now? =
  13. 13.1/2 − 3/10 =
  14. 14.3/10 − 1/4 =
  15. 15.A bottle has 7/8 litre of juice. Arjun drinks 2/3 litre. How much juice is left (in litres)? =
  16. 16.Ishaan has a ribbon 3/5 m long and cuts off 1/4 m. How long is the ribbon now (in m)? =
  17. 17.A tank is 6/7 full of water. Then water filling 2/3 of the tank is used. What fraction of the tank is full now? =
  18. 18.9/10 − 1/6 =
  19. 19.4/5 − 1/2 =
  20. 20.1/2 − 1/8 =
  21. 21.1/3 − 1/7 =
  22. 22.A bottle has 3/4 litre of juice. Vihaan drinks 3/8 litre. How much juice is left (in litres)? =
  23. 23.3/4 − 3/7 =
  24. 24.9/10 − 2/5 =
  25. 25.3/4 − 1/2 =
  26. 26.A tank is 3/5 full of water. Then water filling 1/10 of the tank is used. What fraction of the tank is full now? =
  27. 27.Tara has a ribbon 5/8 m long and cuts off 1/6 m. How long is the ribbon now (in m)? =
  28. 28.A bottle has 3/10 litre of juice. Meera drinks 1/6 litre. How much juice is left (in litres)? =
  29. 29.Ishaan has a ribbon 5/6 m long and cuts off 2/3 m. How long is the ribbon now (in m)? =
  30. 30.Arjun has a ribbon 8/9 m long and cuts off 1/2 m. How long is the ribbon now (in m)? =
  31. 31.A bottle has 1/2 litre of juice. Riya drinks 1/8 litre. How much juice is left (in litres)? =
  32. 32.A tank is 5/6 full of water. Then water filling 3/8 of the tank is used. What fraction of the tank is full now? =
  33. 33.Anaya has a ribbon 2/5 m long and cuts off 3/10 m. How long is the ribbon now (in m)? =
  34. 34.4/5 − 1/3 =
  35. 35.1/3 − 1/6 =
  36. 36.5/8 − 1/4 =
  37. 37.3/4 − 2/7 =
  38. 38.A bottle has 4/5 litre of juice. Meera drinks 3/10 litre. How much juice is left (in litres)? =
  39. 39.Arjun has a ribbon 2/3 m long and cuts off 5/9 m. How long is the ribbon now (in m)? =
  40. 40.5/9 − 1/3 =

Answer key

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

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