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Subtract Fractions with Different Denominators Worksheet

Fractions lesson 16: Subtracting fractions: different denominators · Set 263 · 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. 1.4/5 − 1/4 =
  2. 2.1/3 − 1/10 =
  3. 3.4/9 − 1/3 =
  4. 4.5/6 − 1/8 =
  5. 5.A bottle has 5/8 litre of juice. Tara drinks 1/3 litre. How much juice is left (in litres)? =
  6. 6.A bottle has 9/10 litre of juice. Meera drinks 2/5 litre. How much juice is left (in litres)? =
  7. 7.Meera has a ribbon 2/3 m long and cuts off 2/7 m. How long is the ribbon now (in m)? =
  8. 8.8/9 − 2/3 =
  9. 9.7/10 − 1/5 =
  10. 10.6/7 − 1/2 =
  11. 11.2/3 − 4/7 =
  12. 12.5/6 − 1/10 =
  13. 13.3/7 − 1/4 =
  14. 14.A tank is 5/9 full of water. Then water filling 1/6 of the tank is used. What fraction of the tank is full now? =
  15. 15.2/3 − 5/9 =
  16. 16.A bottle has 3/8 litre of juice. Diya drinks 1/3 litre. How much juice is left (in litres)? =
  17. 17.Arjun has a ribbon 8/9 m long and cuts off 1/6 m. How long is the ribbon now (in m)? =
  18. 18.Arjun has a ribbon 5/9 m long and cuts off 1/6 m. How long is the ribbon now (in m)? =
  19. 19.A bottle has 7/9 litre of juice. Rohan drinks 1/6 litre. How much juice is left (in litres)? =
  20. 20.7/8 − 2/3 =
  21. 21.Tara has a ribbon 2/5 m long and cuts off 1/3 m. How long is the ribbon now (in m)? =
  22. 22.A bottle has 5/6 litre of juice. Arjun drinks 3/8 litre. How much juice is left (in litres)? =
  23. 23.A tank is 5/6 full of water. Then water filling 5/9 of the tank is used. What fraction of the tank is full now? =
  24. 24.Meera has a ribbon 5/8 m long and cuts off 1/2 m. How long is the ribbon now (in m)? =
  25. 25.5/6 − 3/5 =
  26. 26.A tank is 5/6 full of water. Then water filling 2/9 of the tank is used. What fraction of the tank is full now? =
  27. 27.2/3 − 1/9 =
  28. 28.A bottle has 2/3 litre of juice. Ishaan drinks 5/8 litre. How much juice is left (in litres)? =
  29. 29.Meera has a ribbon 1/3 m long and cuts off 2/9 m. How long is the ribbon now (in m)? =
  30. 30.Ishaan has a ribbon 4/7 m long and cuts off 1/4 m. How long is the ribbon now (in m)? =
  31. 31.A bottle has 3/7 litre of juice. Aarav drinks 1/4 litre. How much juice is left (in litres)? =
  32. 32.Ishaan has a ribbon 3/4 m long and cuts off 3/5 m. How long is the ribbon now (in m)? =
  33. 33.2/3 − 1/4 =
  34. 34.A bottle has 3/4 litre of juice. Riya drinks 3/5 litre. How much juice is left (in litres)? =
  35. 35.5/8 − 1/6 =
  36. 36.A bottle has 1/3 litre of juice. Sara drinks 2/7 litre. How much juice is left (in litres)? =
  37. 37.A bottle has 5/6 litre of juice. Aarav drinks 2/3 litre. How much juice is left (in litres)? =
  38. 38.Meera has a ribbon 1/4 m long and cuts off 1/5 m. How long is the ribbon now (in m)? =
  39. 39.8/9 − 5/6 =
  40. 40.2/3 − 3/8 =

Answer key

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

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