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Subtract Fractions with Different Denominators Worksheet

Fractions lesson 16: Subtracting fractions: different denominators · Set 366 · 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. 1.1/5 − 1/6 =
  2. 2.8/9 − 1/3 =
  3. 3.A bottle has 1/2 litre of juice. Vihaan drinks 1/8 litre. How much juice is left (in litres)? =
  4. 4.Aarav has a ribbon 5/7 m long and cuts off 1/4 m. How long is the ribbon now (in m)? =
  5. 5.1/4 − 1/7 =
  6. 6.3/5 − 3/10 =
  7. 7.A tank is 8/9 full of water. Then water filling 1/6 of the tank is used. What fraction of the tank is full now? =
  8. 8.4/5 − 7/10 =
  9. 9.2/3 − 1/8 =
  10. 10.A tank is 1/3 full of water. Then water filling 1/10 of the tank is used. What fraction of the tank is full now? =
  11. 11.3/8 − 1/4 =
  12. 12.A tank is 8/9 full of water. Then water filling 1/3 of the tank is used. What fraction of the tank is full now? =
  13. 13.A bottle has 9/10 litre of juice. Vihaan drinks 1/6 litre. How much juice is left (in litres)? =
  14. 14.A tank is 3/4 full of water. Then water filling 3/5 of the tank is used. What fraction of the tank is full now? =
  15. 15.A bottle has 3/5 litre of juice. Vihaan drinks 1/2 litre. How much juice is left (in litres)? =
  16. 16.A tank is 3/4 full of water. Then water filling 1/7 of the tank is used. What fraction of the tank is full now? =
  17. 17.5/7 − 2/3 =
  18. 18.A bottle has 1/3 litre of juice. Meera drinks 3/10 litre. How much juice is left (in litres)? =
  19. 19.A tank is 5/8 full of water. Then water filling 1/2 of the tank is used. What fraction of the tank is full now? =
  20. 20.Kabir has a ribbon 9/10 m long and cuts off 3/4 m. How long is the ribbon now (in m)? =
  21. 21.A bottle has 7/8 litre of juice. Meera drinks 3/4 litre. How much juice is left (in litres)? =
  22. 22.7/9 − 1/3 =
  23. 23.3/4 − 3/8 =
  24. 24.8/9 − 5/6 =
  25. 25.A bottle has 2/5 litre of juice. Arjun drinks 1/10 litre. How much juice is left (in litres)? =
  26. 26.A bottle has 7/8 litre of juice. Aarav drinks 3/4 litre. How much juice is left (in litres)? =
  27. 27.3/5 − 1/2 =
  28. 28.7/10 − 1/3 =
  29. 29.1/4 − 1/10 =
  30. 30.3/7 − 1/4 =
  31. 31.A tank is 3/4 full of water. Then water filling 1/5 of the tank is used. What fraction of the tank is full now? =
  32. 32.A bottle has 3/4 litre of juice. Aarav drinks 5/8 litre. How much juice is left (in litres)? =
  33. 33.2/3 − 4/9 =
  34. 34.A tank is 5/7 full of water. Then water filling 1/2 of the tank is used. What fraction of the tank is full now? =
  35. 35.1/2 − 1/5 =
  36. 36.3/4 − 1/7 =
  37. 37.A bottle has 8/9 litre of juice. Kabir drinks 2/3 litre. How much juice is left (in litres)? =
  38. 38.Tara has a ribbon 1/3 m long and cuts off 1/7 m. How long is the ribbon now (in m)? =
  39. 39.2/3 − 3/8 =
  40. 40.A bottle has 3/4 litre of juice. Riya drinks 3/8 litre. How much juice is left (in litres)? =

Answer key

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

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