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Subtract Fractions with Different Denominators Worksheet

Fractions lesson 16: Subtracting fractions: different denominators · Set 885 · 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. 1.2/3 − 2/9 =
  2. 2.A tank is 2/3 full of water. Then water filling 2/5 of the tank is used. What fraction of the tank is full now? =
  3. 3.A bottle has 8/9 litre of juice. Anaya drinks 5/6 litre. How much juice is left (in litres)? =
  4. 4.5/9 − 1/3 =
  5. 5.1/2 − 2/7 =
  6. 6.A tank is 3/8 full of water. Then water filling 1/6 of the tank is used. What fraction of the tank is full now? =
  7. 7.A tank is 4/5 full of water. Then water filling 1/2 of the tank is used. What fraction of the tank is full now? =
  8. 8.3/5 − 3/10 =
  9. 9.A tank is 4/5 full of water. Then water filling 1/3 of the tank is used. What fraction of the tank is full now? =
  10. 10.1/3 − 1/4 =
  11. 11.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? =
  12. 12.5/6 − 3/5 =
  13. 13.Meera has a ribbon 7/8 m long and cuts off 1/4 m. How long is the ribbon now (in m)? =
  14. 14.9/10 − 1/5 =
  15. 15.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? =
  16. 16.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? =
  17. 17.5/9 − 1/6 =
  18. 18.A tank is 5/6 full of water. Then water filling 1/4 of the tank is used. What fraction of the tank is full now? =
  19. 19.5/6 − 1/9 =
  20. 20.A tank is 8/9 full of water. Then water filling 5/6 of the tank is used. What fraction of the tank is full now? =
  21. 21.6/7 − 1/4 =
  22. 22.7/8 − 5/6 =
  23. 23.5/6 − 1/2 =
  24. 24.3/4 − 5/7 =
  25. 25.A bottle has 1/3 litre of juice. Sara drinks 3/10 litre. How much juice is left (in litres)? =
  26. 26.A tank is 1/2 full of water. Then water filling 1/5 of the tank is used. What fraction of the tank is full now? =
  27. 27.A bottle has 3/8 litre of juice. Sara drinks 1/3 litre. How much juice is left (in litres)? =
  28. 28.A tank is 5/8 full of water. Then water filling 1/4 of the tank is used. What fraction of the tank is full now? =
  29. 29.A bottle has 5/6 litre of juice. Anaya drinks 1/10 litre. How much juice is left (in litres)? =
  30. 30.Arjun has a ribbon 7/9 m long and cuts off 2/3 m. How long is the ribbon now (in m)? =
  31. 31.4/5 − 1/10 =
  32. 32.A bottle has 1/5 litre of juice. Aarav drinks 1/6 litre. How much juice is left (in litres)? =
  33. 33.2/3 − 1/9 =
  34. 34.7/9 − 1/2 =
  35. 35.7/8 − 1/2 =
  36. 36.A tank is 4/5 full of water. Then water filling 1/6 of the tank is used. What fraction of the tank is full now? =
  37. 37.A tank is 7/8 full of water. Then water filling 1/4 of the tank is used. What fraction of the tank is full now? =
  38. 38.5/7 − 1/2 =
  39. 39.A bottle has 4/7 litre of juice. Vihaan drinks 1/4 litre. How much juice is left (in litres)? =
  40. 40.1/5 − 1/6 =

Answer key

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

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