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Subtract Fractions with Different Denominators Worksheet

Fractions lesson 16: Subtracting fractions: different denominators · Set 526 · 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.A tank is 3/4 full of water. Then water filling 1/6 of the tank is used. What fraction of the tank is full now? =
  2. 2.Tara has a ribbon 7/10 m long and cuts off 2/5 m. How long is the ribbon now (in m)? =
  3. 3.1/2 − 1/5 =
  4. 4.A bottle has 3/4 litre of juice. Diya drinks 7/10 litre. How much juice is left (in litres)? =
  5. 5.7/9 − 1/6 =
  6. 6.A tank is 4/5 full of water. Then water filling 2/3 of the tank is used. What fraction of the tank is full now? =
  7. 7.Meera has a ribbon 1/2 m long and cuts off 1/4 m. How long is the ribbon now (in m)? =
  8. 8.A tank is 1/2 full of water. Then water filling 1/9 of the tank is used. What fraction of the tank is full now? =
  9. 9.6/7 − 1/2 =
  10. 10.2/3 − 2/5 =
  11. 11.3/5 − 1/6 =
  12. 12.1/6 − 1/8 =
  13. 13.2/3 − 1/5 =
  14. 14.A tank is 7/8 full of water. Then water filling 3/4 of the tank is used. What fraction of the tank is full now? =
  15. 15.A bottle has 7/8 litre of juice. Ishaan drinks 1/4 litre. How much juice is left (in litres)? =
  16. 16.A tank is 1/2 full of water. Then water filling 3/7 of the tank is used. What fraction of the tank is full now? =
  17. 17.Tara has a ribbon 7/9 m long and cuts off 1/3 m. How long is the ribbon now (in m)? =
  18. 18.Anaya has a ribbon 5/8 m long and cuts off 1/2 m. How long is the ribbon now (in m)? =
  19. 19.4/5 − 1/6 =
  20. 20.5/9 − 1/6 =
  21. 21.7/8 − 3/4 =
  22. 22.3/5 − 3/10 =
  23. 23.A bottle has 5/8 litre of juice. Meera drinks 1/3 litre. How much juice is left (in litres)? =
  24. 24.5/6 − 5/8 =
  25. 25.A bottle has 4/5 litre of juice. Kabir drinks 1/2 litre. How much juice is left (in litres)? =
  26. 26.A bottle has 7/8 litre of juice. Rohan drinks 1/6 litre. How much juice is left (in litres)? =
  27. 27.A bottle has 1/2 litre of juice. Meera drinks 1/7 litre. How much juice is left (in litres)? =
  28. 28.9/10 − 2/5 =
  29. 29.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? =
  30. 30.A bottle has 7/8 litre of juice. Arjun drinks 1/2 litre. How much juice is left (in litres)? =
  31. 31.1/2 − 1/7 =
  32. 32.Kabir has a ribbon 3/4 m long and cuts off 3/5 m. How long is the ribbon now (in m)? =
  33. 33.1/3 − 1/7 =
  34. 34.2/7 − 1/4 =
  35. 35.5/6 − 1/8 =
  36. 36.A bottle has 1/3 litre of juice. Aarav drinks 2/9 litre. How much juice is left (in litres)? =
  37. 37.3/4 − 3/5 =
  38. 38.2/3 − 1/4 =
  39. 39.2/3 − 5/9 =
  40. 40.7/8 − 1/4 =

Answer key

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

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