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Subtract Fractions with Different Denominators Worksheet

Fractions lesson 16: Subtracting fractions: different denominators · Set 405 · 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. 1.5/8 − 1/3 =
  2. 2.5/6 − 2/3 =
  3. 3.5/6 − 3/8 =
  4. 4.3/4 − 1/2 =
  5. 5.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? =
  6. 6.A tank is 2/5 full of water. Then water filling 1/10 of the tank is used. What fraction of the tank is full now? =
  7. 7.A bottle has 7/10 litre of juice. Vihaan drinks 3/5 litre. How much juice is left (in litres)? =
  8. 8.Anaya has a ribbon 4/7 m long and cuts off 1/4 m. How long is the ribbon now (in m)? =
  9. 9.1/2 − 3/10 =
  10. 10.9/10 − 2/5 =
  11. 11.A tank is 2/3 full of water. Then water filling 1/7 of the tank is used. What fraction of the tank is full now? =
  12. 12.A tank is 5/6 full of water. Then water filling 3/4 of the tank is used. What fraction of the tank is full now? =
  13. 13.1/5 − 1/6 =
  14. 14.A bottle has 9/10 litre of juice. Rohan drinks 5/6 litre. How much juice is left (in litres)? =
  15. 15.Aarav has a ribbon 3/4 m long and cuts off 3/5 m. How long is the ribbon now (in m)? =
  16. 16.3/4 − 7/10 =
  17. 17.Rohan has a ribbon 1/3 m long and cuts off 1/8 m. How long is the ribbon now (in m)? =
  18. 18.2/5 − 3/10 =
  19. 19.7/9 − 2/3 =
  20. 20.A tank is 5/6 full of water. Then water filling 3/5 of the tank is used. What fraction of the tank is full now? =
  21. 21.A bottle has 3/7 litre of juice. Ishaan drinks 1/3 litre. How much juice is left (in litres)? =
  22. 22.A tank is 9/10 full of water. Then water filling 1/4 of the tank is used. What fraction of the tank is full now? =
  23. 23.Diya has a ribbon 1/4 m long and cuts off 1/7 m. How long is the ribbon now (in m)? =
  24. 24.A tank is 4/7 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 1/2 full of water. Then water filling 4/9 of the tank is used. What fraction of the tank is full now? =
  26. 26.A bottle has 3/10 litre of juice. Sara drinks 1/5 litre. How much juice is left (in litres)? =
  27. 27.7/10 − 1/4 =
  28. 28.3/4 − 3/7 =
  29. 29.A tank is 6/7 full of water. Then water filling 1/2 of the tank is used. What fraction of the tank is full now? =
  30. 30.A bottle has 8/9 litre of juice. Diya drinks 2/3 litre. How much juice is left (in litres)? =
  31. 31.Anaya has a ribbon 2/5 m long and cuts off 1/10 m. How long is the ribbon now (in m)? =
  32. 32.2/3 − 4/7 =
  33. 33.5/8 − 1/2 =
  34. 34.A tank is 7/10 full of water. Then water filling 1/5 of the tank is used. What fraction of the tank is full now? =
  35. 35.7/8 − 2/3 =
  36. 36.1/6 − 1/9 =
  37. 37.Meera has a ribbon 4/7 m long and cuts off 1/3 m. How long is the ribbon now (in m)? =
  38. 38.A bottle has 3/4 litre of juice. Arjun drinks 4/7 litre. How much juice is left (in litres)? =
  39. 39.6/7 − 1/4 =
  40. 40.5/6 − 1/5 =

Answer key

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

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