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Subtract Fractions with Different Denominators Worksheet

Fractions lesson 16: Subtracting fractions: different denominators · Set 318 · 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. 1.5/8 − 1/2 =
  2. 2.4/9 − 1/3 =
  3. 3.5/6 − 3/4 =
  4. 4.Diya has a ribbon 2/3 m long and cuts off 2/5 m. How long is the ribbon now (in m)? =
  5. 5.A bottle has 1/3 litre of juice. Aarav drinks 2/7 litre. How much juice is left (in litres)? =
  6. 6.A tank is 2/3 full of water. Then water filling 2/7 of the tank is used. What fraction of the tank is full now? =
  7. 7.4/5 − 3/10 =
  8. 8.A bottle has 2/3 litre of juice. Arjun drinks 3/5 litre. How much juice is left (in litres)? =
  9. 9.9/10 − 4/5 =
  10. 10.2/5 − 1/10 =
  11. 11.3/8 − 1/6 =
  12. 12.Riya has a ribbon 3/4 m long and cuts off 1/7 m. How long is the ribbon now (in m)? =
  13. 13.Aarav has a ribbon 4/5 m long and cuts off 1/6 m. How long is the ribbon now (in m)? =
  14. 14.Riya has a ribbon 1/3 m long and cuts off 1/5 m. How long is the ribbon now (in m)? =
  15. 15.A tank is 9/10 full of water. Then water filling 4/5 of the tank is used. What fraction of the tank is full now? =
  16. 16.3/7 − 1/3 =
  17. 17.7/8 − 1/3 =
  18. 18.A bottle has 6/7 litre of juice. Riya drinks 2/3 litre. How much juice is left (in litres)? =
  19. 19.1/2 − 4/9 =
  20. 20.A bottle has 5/8 litre of juice. Anaya drinks 1/4 litre. How much juice is left (in litres)? =
  21. 21.Ishaan has a ribbon 4/7 m long and cuts off 1/3 m. How long is the ribbon now (in m)? =
  22. 22.Sara has a ribbon 7/9 m long and cuts off 1/6 m. How long is the ribbon now (in m)? =
  23. 23.3/4 − 2/7 =
  24. 24.A tank is 7/8 full of water. Then water filling 1/6 of the tank is used. What fraction of the tank is full now? =
  25. 25.A bottle has 3/7 litre of juice. Vihaan drinks 1/4 litre. How much juice is left (in litres)? =
  26. 26.Diya has a ribbon 4/7 m long and cuts off 1/3 m. How long is the ribbon now (in m)? =
  27. 27.1/3 − 2/9 =
  28. 28.A bottle has 5/6 litre of juice. Vihaan drinks 3/8 litre. How much juice is left (in litres)? =
  29. 29.Sara has a ribbon 1/6 m long and cuts off 1/8 m. How long is the ribbon now (in m)? =
  30. 30.1/6 − 1/8 =
  31. 31.A tank is 4/9 full of water. Then water filling 1/6 of the tank is used. What fraction of the tank is full now? =
  32. 32.A bottle has 4/9 litre of juice. Tara drinks 1/6 litre. How much juice is left (in litres)? =
  33. 33.Diya has a ribbon 5/6 m long and cuts off 7/9 m. How long is the ribbon now (in m)? =
  34. 34.4/5 − 1/6 =
  35. 35.Tara has a ribbon 9/10 m long and cuts off 4/5 m. How long is the ribbon now (in m)? =
  36. 36.Rohan has a ribbon 6/7 m long and cuts off 2/3 m. How long is the ribbon now (in m)? =
  37. 37.5/9 − 1/2 =
  38. 38.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? =
  39. 39.Ishaan has a ribbon 1/3 m long and cuts off 1/6 m. How long is the ribbon now (in m)? =
  40. 40.8/9 − 1/2 =

Answer key

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

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