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Subtract Fractions with Different Denominators Worksheet

Fractions lesson 16: Subtracting fractions: different denominators · Set 540 · 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. 1.1/2 − 1/10 =
  2. 2.4/5 − 1/10 =
  3. 3.A bottle has 1/2 litre of juice. Arjun drinks 2/7 litre. How much juice is left (in litres)? =
  4. 4.7/10 − 3/5 =
  5. 5.1/6 − 1/9 =
  6. 6.5/7 − 1/4 =
  7. 7.A tank is 1/2 full of water. Then water filling 4/9 of the tank is used. What fraction of the tank is full now? =
  8. 8.9/10 − 2/3 =
  9. 9.Ishaan has a ribbon 7/8 m long and cuts off 1/4 m. How long is the ribbon now (in m)? =
  10. 10.5/9 − 1/2 =
  11. 11.Vihaan has a ribbon 6/7 m long and cuts off 2/3 m. How long is the ribbon now (in m)? =
  12. 12.A bottle has 3/4 litre of juice. Vihaan drinks 1/5 litre. How much juice is left (in litres)? =
  13. 13.Tara has a ribbon 3/8 m long and cuts off 1/3 m. How long is the ribbon now (in m)? =
  14. 14.A bottle has 5/6 litre of juice. Diya drinks 5/9 litre. How much juice is left (in litres)? =
  15. 15.5/6 − 2/9 =
  16. 16.4/5 − 3/4 =
  17. 17.A tank is 7/9 full of water. Then water filling 1/3 of the tank is used. What fraction of the tank is full now? =
  18. 18.2/3 − 3/5 =
  19. 19.A tank is 1/3 full of water. Then water filling 2/7 of the tank is used. What fraction of the tank is full now? =
  20. 20.Anaya has a ribbon 2/5 m long and cuts off 1/10 m. How long is the ribbon now (in m)? =
  21. 21.A bottle has 5/6 litre of juice. Tara drinks 4/9 litre. How much juice is left (in litres)? =
  22. 22.A tank is 9/10 full of water. Then water filling 1/6 of the tank is used. What fraction of the tank is full now? =
  23. 23.6/7 − 3/4 =
  24. 24.Ishaan has a ribbon 9/10 m long and cuts off 1/4 m. How long is the ribbon now (in m)? =
  25. 25.A bottle has 2/3 litre of juice. Sara drinks 5/8 litre. How much juice is left (in litres)? =
  26. 26.2/3 − 1/8 =
  27. 27.2/5 − 3/10 =
  28. 28.2/3 − 2/9 =
  29. 29.Diya has a ribbon 2/3 m long and cuts off 4/7 m. How long is the ribbon now (in m)? =
  30. 30.3/4 − 1/10 =
  31. 31.8/9 − 1/3 =
  32. 32.5/6 − 1/10 =
  33. 33.A bottle has 3/4 litre of juice. Meera drinks 1/6 litre. How much juice is left (in litres)? =
  34. 34.A bottle has 1/3 litre of juice. Meera drinks 2/7 litre. How much juice is left (in litres)? =
  35. 35.Meera has a ribbon 9/10 m long and cuts off 1/4 m. How long is the ribbon now (in m)? =
  36. 36.Kabir has a ribbon 2/3 m long and cuts off 2/7 m. How long is the ribbon now (in m)? =
  37. 37.Anaya has a ribbon 7/10 m long and cuts off 3/5 m. How long is the ribbon now (in m)? =
  38. 38.A tank is 5/9 full of water. Then water filling 1/2 of the tank is used. What fraction of the tank is full now? =
  39. 39.7/9 − 1/2 =
  40. 40.A bottle has 3/8 litre of juice. Riya drinks 1/3 litre. How much juice is left (in litres)? =

Answer key

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

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