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Subtract Fractions with Different Denominators Worksheet

Fractions lesson 16: Subtracting fractions: different denominators · Set 686 · 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. 1.3/4 − 5/8 =
  2. 2.1/2 − 1/7 =
  3. 3.1/2 − 3/7 =
  4. 4.Riya has a ribbon 5/6 m long and cuts off 7/9 m. How long is the ribbon now (in m)? =
  5. 5.4/9 − 1/3 =
  6. 6.A bottle has 4/5 litre of juice. Riya drinks 1/2 litre. How much juice is left (in litres)? =
  7. 7.7/10 − 2/3 =
  8. 8.5/6 − 3/10 =
  9. 9.A tank is 3/4 full of water. Then water filling 1/3 of the tank is used. What fraction of the tank is full now? =
  10. 10.A bottle has 5/6 litre of juice. Anaya drinks 2/9 litre. How much juice is left (in litres)? =
  11. 11.Ishaan has a ribbon 5/6 m long and cuts off 2/9 m. How long is the ribbon now (in m)? =
  12. 12.7/8 − 1/4 =
  13. 13.A bottle has 3/4 litre of juice. Ishaan drinks 5/8 litre. How much juice is left (in litres)? =
  14. 14.Anaya has a ribbon 3/5 m long and cuts off 3/10 m. How long is the ribbon now (in m)? =
  15. 15.A bottle has 4/5 litre of juice. Kabir drinks 1/2 litre. How much juice is left (in litres)? =
  16. 16.A bottle has 2/3 litre of juice. Meera drinks 1/9 litre. How much juice is left (in litres)? =
  17. 17.1/3 − 1/7 =
  18. 18.Meera has a ribbon 7/8 m long and cuts off 1/3 m. How long is the ribbon now (in m)? =
  19. 19.A tank is 3/10 full of water. Then water filling 1/5 of the tank is used. What fraction of the tank is full now? =
  20. 20.A bottle has 2/5 litre of juice. Aarav drinks 3/10 litre. How much juice is left (in litres)? =
  21. 21.2/3 − 1/9 =
  22. 22.Ishaan has a ribbon 4/7 m long and cuts off 1/4 m. How long is the ribbon now (in m)? =
  23. 23.3/4 − 1/10 =
  24. 24.2/3 − 1/5 =
  25. 25.2/3 − 1/7 =
  26. 26.Aarav has a ribbon 7/8 m long and cuts off 1/6 m. How long is the ribbon now (in m)? =
  27. 27.A tank is 1/4 full of water. Then water filling 1/6 of the tank is used. What fraction of the tank is full now? =
  28. 28.7/9 − 1/3 =
  29. 29.A bottle has 2/3 litre of juice. Vihaan drinks 5/8 litre. How much juice is left (in litres)? =
  30. 30.2/3 − 1/8 =
  31. 31.Riya has a ribbon 3/4 m long and cuts off 1/6 m. How long is the ribbon now (in m)? =
  32. 32.A tank is 5/7 full of water. Then water filling 2/3 of the tank is used. What fraction of the tank is full now? =
  33. 33.6/7 − 2/3 =
  34. 34.A bottle has 3/7 litre of juice. Arjun drinks 1/4 litre. How much juice is left (in litres)? =
  35. 35.1/4 − 1/7 =
  36. 36.9/10 − 2/5 =
  37. 37.A bottle has 7/9 litre of juice. Vihaan drinks 1/2 litre. How much juice is left (in litres)? =
  38. 38.5/7 − 1/3 =
  39. 39.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? =
  40. 40.5/6 − 1/8 =

Answer key

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

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