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Subtract Fractions with Different Denominators Worksheet

Fractions lesson 16: Subtracting fractions: different denominators · Set 596 · 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.Sara has a ribbon 1/2 m long and cuts off 1/5 m. How long is the ribbon now (in m)? =
  2. 2.A tank is 9/10 full of water. Then water filling 1/6 of the tank is used. What fraction of the tank is full now? =
  3. 3.5/8 − 1/3 =
  4. 4.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? =
  5. 5.5/6 − 7/9 =
  6. 6.7/8 − 3/4 =
  7. 7.3/4 − 2/7 =
  8. 8.5/8 − 1/2 =
  9. 9.3/4 − 5/8 =
  10. 10.6/7 − 1/2 =
  11. 11.A bottle has 5/9 litre of juice. Riya drinks 1/6 litre. How much juice is left (in litres)? =
  12. 12.5/6 − 1/2 =
  13. 13.Anaya has a ribbon 7/9 m long and cuts off 2/3 m. How long is the ribbon now (in m)? =
  14. 14.A tank is 5/9 full of water. Then water filling 1/6 of the tank is used. What fraction of the tank is full now? =
  15. 15.3/5 − 1/10 =
  16. 16.Riya has a ribbon 1/2 m long and cuts off 4/9 m. How long is the ribbon now (in m)? =
  17. 17.Riya has a ribbon 1/4 m long and cuts off 1/7 m. How long is the ribbon now (in m)? =
  18. 18.5/7 − 1/2 =
  19. 19.1/2 − 1/10 =
  20. 20.A tank is 3/8 full of water. Then water filling 1/4 of the tank is used. What fraction of the tank is full now? =
  21. 21.1/2 − 2/7 =
  22. 22.9/10 − 5/6 =
  23. 23.4/5 − 1/2 =
  24. 24.3/5 − 3/10 =
  25. 25.Arjun has a ribbon 4/5 m long and cuts off 7/10 m. How long is the ribbon now (in m)? =
  26. 26.A bottle has 2/3 litre of juice. Diya drinks 1/9 litre. How much juice is left (in litres)? =
  27. 27.Arjun has a ribbon 9/10 m long and cuts off 1/5 m. How long is the ribbon now (in m)? =
  28. 28.2/3 − 4/9 =
  29. 29.Meera has a ribbon 3/10 m long and cuts off 1/4 m. How long is the ribbon now (in m)? =
  30. 30.7/8 − 5/6 =
  31. 31.A bottle has 9/10 litre of juice. Aarav drinks 3/4 litre. How much juice is left (in litres)? =
  32. 32.A bottle has 9/10 litre of juice. Ishaan drinks 3/5 litre. How much juice is left (in litres)? =
  33. 33.7/10 − 1/5 =
  34. 34.2/3 − 2/7 =
  35. 35.A tank is 3/4 full of water. Then water filling 7/10 of the tank is used. What fraction of the tank is full now? =
  36. 36.Aarav has a ribbon 5/6 m long and cuts off 7/9 m. How long is the ribbon now (in m)? =
  37. 37.Diya has a ribbon 3/5 m long and cuts off 1/6 m. How long is the ribbon now (in m)? =
  38. 38.A tank is 2/3 full of water. Then water filling 4/9 of the tank is used. What fraction of the tank is full now? =
  39. 39.A bottle has 1/2 litre of juice. Tara drinks 3/7 litre. How much juice is left (in litres)? =
  40. 40.1/3 − 2/9 =

Answer key

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

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