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Subtract Fractions with Different Denominators Worksheet

Fractions lesson 16: Subtracting fractions: different denominators · Set 896 · 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.Arjun has a ribbon 2/9 m long and cuts off 1/6 m. How long is the ribbon now (in m)? =
  2. 2.1/2 − 1/9 =
  3. 3.5/8 − 1/6 =
  4. 4.A tank is 2/3 full of water. Then water filling 2/9 of the tank is used. What fraction of the tank is full now? =
  5. 5.5/7 − 1/2 =
  6. 6.1/4 − 1/7 =
  7. 7.A bottle has 2/5 litre of juice. Tara drinks 3/10 litre. How much juice is left (in litres)? =
  8. 8.3/4 − 1/3 =
  9. 9.A bottle has 1/4 litre of juice. Aarav drinks 1/8 litre. How much juice is left (in litres)? =
  10. 10.5/8 − 1/4 =
  11. 11.A bottle has 9/10 litre of juice. Meera drinks 4/5 litre. How much juice is left (in litres)? =
  12. 12.2/5 − 3/10 =
  13. 13.Ishaan has a ribbon 6/7 m long and cuts off 3/4 m. How long is the ribbon now (in m)? =
  14. 14.3/8 − 1/3 =
  15. 15.Kabir has a ribbon 8/9 m long and cuts off 1/2 m. How long is the ribbon now (in m)? =
  16. 16.A tank is 7/8 full of water. Then water filling 1/3 of the tank is used. What fraction of the tank is full now? =
  17. 17.Vihaan has a ribbon 3/4 m long and cuts off 7/10 m. How long is the ribbon now (in m)? =
  18. 18.A bottle has 1/3 litre of juice. Anaya drinks 1/7 litre. How much juice is left (in litres)? =
  19. 19.A tank is 2/9 full of water. Then water filling 1/6 of the tank is used. What fraction of the tank is full now? =
  20. 20.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? =
  21. 21.A bottle has 3/4 litre of juice. Riya drinks 1/7 litre. How much juice is left (in litres)? =
  22. 22.Meera has a ribbon 3/7 m long and cuts off 1/3 m. How long is the ribbon now (in m)? =
  23. 23.9/10 − 2/3 =
  24. 24.Tara has a ribbon 1/2 m long and cuts off 4/9 m. How long is the ribbon now (in m)? =
  25. 25.A bottle has 6/7 litre of juice. Vihaan drinks 2/3 litre. How much juice is left (in litres)? =
  26. 26.A tank is 1/3 full of water. Then water filling 2/9 of the tank is used. What fraction of the tank is full now? =
  27. 27.A tank is 2/3 full of water. Then water filling 5/8 of the tank is used. What fraction of the tank is full now? =
  28. 28.3/4 − 1/6 =
  29. 29.Diya has a ribbon 7/9 m long and cuts off 1/3 m. How long is the ribbon now (in m)? =
  30. 30.5/6 − 4/9 =
  31. 31.3/10 − 1/6 =
  32. 32.3/4 − 5/7 =
  33. 33.A tank is 7/8 full of water. Then water filling 2/3 of the tank is used. What fraction of the tank is full now? =
  34. 34.5/6 − 3/10 =
  35. 35.5/6 − 3/5 =
  36. 36.4/5 − 1/3 =
  37. 37.5/9 − 1/2 =
  38. 38.7/8 − 2/3 =
  39. 39.6/7 − 1/3 =
  40. 40.A bottle has 9/10 litre of juice. Anaya drinks 1/4 litre. How much juice is left (in litres)? =

Answer key

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

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