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Subtract Fractions with Different Denominators Worksheet

Fractions lesson 16: Subtracting fractions: different denominators · Set 30 · 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.Rohan has a ribbon 1/2 m long and cuts off 1/10 m. How long is the ribbon now (in m)? =
  2. 2.5/6 − 3/10 =
  3. 3.5/8 − 1/3 =
  4. 4.Kabir has a ribbon 9/10 m long and cuts off 1/5 m. How long is the ribbon now (in m)? =
  5. 5.5/9 − 1/3 =
  6. 6.Ishaan has a ribbon 2/3 m long and cuts off 3/8 m. How long is the ribbon now (in m)? =
  7. 7.3/4 − 3/7 =
  8. 8.A tank is 8/9 full of water. Then water filling 2/3 of the tank is used. What fraction of the tank is full now? =
  9. 9.A tank is 1/3 full of water. Then water filling 3/10 of the tank is used. What fraction of the tank is full now? =
  10. 10.Kabir has a ribbon 5/8 m long and cuts off 1/4 m. How long is the ribbon now (in m)? =
  11. 11.A bottle has 3/4 litre of juice. Tara drinks 1/7 litre. How much juice is left (in litres)? =
  12. 12.Ishaan has a ribbon 3/10 m long and cuts off 1/5 m. How long is the ribbon now (in m)? =
  13. 13.Ishaan has a ribbon 1/4 m long and cuts off 1/5 m. How long is the ribbon now (in m)? =
  14. 14.5/6 − 1/5 =
  15. 15.1/4 − 1/10 =
  16. 16.5/6 − 4/9 =
  17. 17.6/7 − 1/4 =
  18. 18.7/8 − 1/6 =
  19. 19.2/3 − 3/10 =
  20. 20.A tank is 7/10 full of water. Then water filling 2/3 of the tank is used. What fraction of the tank is full now? =
  21. 21.3/4 − 2/7 =
  22. 22.Riya has a ribbon 3/10 m long and cuts off 1/4 m. How long is the ribbon now (in m)? =
  23. 23.4/9 − 1/3 =
  24. 24.Anaya has a ribbon 1/3 m long and cuts off 1/7 m. How long is the ribbon now (in m)? =
  25. 25.5/7 − 1/2 =
  26. 26.5/6 − 2/3 =
  27. 27.A bottle has 9/10 litre of juice. Diya drinks 1/6 litre. How much juice is left (in litres)? =
  28. 28.A bottle has 5/8 litre of juice. Aarav drinks 1/4 litre. How much juice is left (in litres)? =
  29. 29.7/10 − 2/5 =
  30. 30.1/2 − 3/10 =
  31. 31.A bottle has 1/2 litre of juice. Arjun drinks 4/9 litre. How much juice is left (in litres)? =
  32. 32.A tank is 4/9 full of water. Then water filling 1/3 of the tank is used. What fraction of the tank is full now? =
  33. 33.A bottle has 7/10 litre of juice. Kabir drinks 1/6 litre. How much juice is left (in litres)? =
  34. 34.1/5 − 1/6 =
  35. 35.2/5 − 3/10 =
  36. 36.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? =
  37. 37.A tank is 1/3 full of water. Then water filling 2/9 of the tank is used. What fraction of the tank is full now? =
  38. 38.A tank is 5/6 full of water. Then water filling 2/9 of the tank is used. What fraction of the tank is full now? =
  39. 39.5/6 − 1/4 =
  40. 40.Sara has a ribbon 7/8 m long and cuts off 1/6 m. How long is the ribbon now (in m)? =

Answer key

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

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