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Subtract Fractions with Different Denominators Worksheet

Fractions lesson 16: Subtracting fractions: different denominators · Set 566 · 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.Ishaan has a ribbon 1/6 m long and cuts off 1/9 m. How long is the ribbon now (in m)? =
  2. 2.A bottle has 3/4 litre of juice. Rohan drinks 2/5 litre. How much juice is left (in litres)? =
  3. 3.2/5 − 1/3 =
  4. 4.Vihaan has a ribbon 7/9 m long and cuts off 1/3 m. How long is the ribbon now (in m)? =
  5. 5.A tank is 1/2 full of water. Then water filling 1/7 of the tank is used. What fraction of the tank is full now? =
  6. 6.5/6 − 5/8 =
  7. 7.5/7 − 1/3 =
  8. 8.A bottle has 3/4 litre of juice. Meera drinks 3/8 litre. How much juice is left (in litres)? =
  9. 9.Anaya has a ribbon 3/4 m long and cuts off 1/2 m. How long is the ribbon now (in m)? =
  10. 10.Diya has a ribbon 4/5 m long and cuts off 1/10 m. How long is the ribbon now (in m)? =
  11. 11.4/5 − 1/3 =
  12. 12.A tank is 1/2 full of water. Then water filling 2/9 of the tank is used. What fraction of the tank is full now? =
  13. 13.3/4 − 2/3 =
  14. 14.7/8 − 1/4 =
  15. 15.Rohan has a ribbon 6/7 m long and cuts off 1/4 m. How long is the ribbon now (in m)? =
  16. 16.3/4 − 2/5 =
  17. 17.Meera has a ribbon 2/3 m long and cuts off 1/10 m. How long is the ribbon now (in m)? =
  18. 18.1/4 − 1/6 =
  19. 19.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? =
  20. 20.A bottle has 8/9 litre of juice. Anaya drinks 1/6 litre. How much juice is left (in litres)? =
  21. 21.1/2 − 2/9 =
  22. 22.A bottle has 1/2 litre of juice. Riya drinks 1/9 litre. How much juice is left (in litres)? =
  23. 23.4/5 − 1/6 =
  24. 24.A tank is 5/7 full of water. Then water filling 1/3 of the tank is used. What fraction of the tank is full now? =
  25. 25.A tank is 1/3 full of water. Then water filling 1/9 of the tank is used. What fraction of the tank is full now? =
  26. 26.Arjun has a ribbon 7/10 m long and cuts off 1/6 m. How long is the ribbon now (in m)? =
  27. 27.A bottle has 5/6 litre of juice. Diya drinks 1/8 litre. How much juice is left (in litres)? =
  28. 28.Sara has a ribbon 3/5 m long and cuts off 3/10 m. How long is the ribbon now (in m)? =
  29. 29.2/9 − 1/6 =
  30. 30.5/9 − 1/6 =
  31. 31.A bottle has 4/5 litre of juice. Arjun drinks 3/4 litre. How much juice is left (in litres)? =
  32. 32.7/10 − 1/4 =
  33. 33.5/6 − 5/9 =
  34. 34.3/4 − 5/7 =
  35. 35.2/5 − 1/6 =
  36. 36.3/5 − 1/2 =
  37. 37.A bottle has 5/6 litre of juice. Aarav drinks 4/9 litre. How much juice is left (in litres)? =
  38. 38.A tank is 2/3 full of water. Then water filling 1/5 of the tank is used. What fraction of the tank is full now? =
  39. 39.6/7 − 1/4 =
  40. 40.A bottle has 1/2 litre of juice. Kabir drinks 4/9 litre. How much juice is left (in litres)? =

Answer key

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

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