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Subtract Fractions with Different Denominators Worksheet

Fractions lesson 16: Subtracting fractions: different denominators · Set 44 · 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. 1.8/9 − 1/3 =
  2. 2.1/6 − 1/9 =
  3. 3.5/8 − 1/6 =
  4. 4.5/6 − 3/8 =
  5. 5.A bottle has 1/4 litre of juice. Ishaan drinks 1/7 litre. How much juice is left (in litres)? =
  6. 6.A bottle has 4/5 litre of juice. Sara drinks 1/2 litre. How much juice is left (in litres)? =
  7. 7.Diya has a ribbon 6/7 m long and cuts off 3/4 m. How long is the ribbon now (in m)? =
  8. 8.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? =
  9. 9.Rohan has a ribbon 7/8 m long and cuts off 2/3 m. How long is the ribbon now (in m)? =
  10. 10.3/4 − 1/10 =
  11. 11.A bottle has 8/9 litre of juice. Sara drinks 2/3 litre. How much juice is left (in litres)? =
  12. 12.2/3 − 5/9 =
  13. 13.9/10 − 2/3 =
  14. 14.Ishaan has a ribbon 6/7 m long and cuts off 2/3 m. How long is the ribbon now (in m)? =
  15. 15.A bottle has 5/6 litre of juice. Aarav drinks 5/8 litre. How much juice is left (in litres)? =
  16. 16.4/7 − 1/2 =
  17. 17.A tank is 9/10 full of water. Then water filling 3/5 of the tank is used. What fraction of the tank is full now? =
  18. 18.1/2 − 1/7 =
  19. 19.A bottle has 2/3 litre of juice. Diya drinks 3/8 litre. How much juice is left (in litres)? =
  20. 20.Tara has a ribbon 7/8 m long and cuts off 1/3 m. How long is the ribbon now (in m)? =
  21. 21.4/7 − 1/4 =
  22. 22.4/7 − 1/3 =
  23. 23.5/7 − 1/3 =
  24. 24.A tank is 5/6 full of water. Then water filling 2/5 of the tank is used. What fraction of the tank is full now? =
  25. 25.A tank is 5/6 full of water. Then water filling 7/9 of the tank is used. What fraction of the tank is full now? =
  26. 26.Anaya has a ribbon 1/2 m long and cuts off 1/7 m. How long is the ribbon now (in m)? =
  27. 27.7/9 − 1/3 =
  28. 28.A bottle has 3/8 litre of juice. Rohan drinks 1/4 litre. How much juice is left (in litres)? =
  29. 29.8/9 − 1/2 =
  30. 30.Anaya has a ribbon 1/2 m long and cuts off 1/4 m. How long is the ribbon now (in m)? =
  31. 31.3/5 − 1/4 =
  32. 32.3/4 − 1/3 =
  33. 33.2/5 − 1/10 =
  34. 34.A bottle has 5/6 litre of juice. Sara drinks 7/10 litre. How much juice is left (in litres)? =
  35. 35.Tara has a ribbon 7/9 m long and cuts off 1/6 m. How long is the ribbon now (in m)? =
  36. 36.3/4 − 3/5 =
  37. 37.Meera has a ribbon 1/2 m long and cuts off 1/3 m. How long is the ribbon now (in m)? =
  38. 38.A tank is 3/5 full of water. Then water filling 1/2 of the tank is used. What fraction of the tank is full now? =
  39. 39.A bottle has 5/9 litre of juice. Vihaan drinks 1/2 litre. How much juice is left (in litres)? =
  40. 40.3/5 − 1/2 =

Answer key

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

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