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Subtract Fractions with Different Denominators Worksheet

Fractions lesson 16: Subtracting fractions: different denominators · Set 878 · 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 − 1/6 =
  2. 2.5/6 − 3/10 =
  3. 3.Aarav has a ribbon 1/3 m long and cuts off 1/6 m. How long is the ribbon now (in m)? =
  4. 4.A tank is 2/5 full of water. Then water filling 1/4 of the tank is used. What fraction of the tank is full now? =
  5. 5.Sara has a ribbon 2/3 m long and cuts off 3/8 m. How long is the ribbon now (in m)? =
  6. 6.A bottle has 3/8 litre of juice. Aarav drinks 1/6 litre. How much juice is left (in litres)? =
  7. 7.A bottle has 7/9 litre of juice. Arjun drinks 2/3 litre. How much juice is left (in litres)? =
  8. 8.Tara has a ribbon 1/2 m long and cuts off 2/9 m. How long is the ribbon now (in m)? =
  9. 9.A bottle has 5/6 litre of juice. Riya drinks 1/5 litre. How much juice is left (in litres)? =
  10. 10.A bottle has 5/7 litre of juice. Aarav drinks 1/3 litre. How much juice is left (in litres)? =
  11. 11.A bottle has 2/3 litre of juice. Riya drinks 1/5 litre. How much juice is left (in litres)? =
  12. 12.2/7 − 1/4 =
  13. 13.Ishaan has a ribbon 7/9 m long and cuts off 1/3 m. How long is the ribbon now (in m)? =
  14. 14.2/9 − 1/6 =
  15. 15.2/3 − 1/5 =
  16. 16.7/10 − 2/5 =
  17. 17.A bottle has 1/2 litre of juice. Diya drinks 3/8 litre. How much juice is left (in litres)? =
  18. 18.3/4 − 2/7 =
  19. 19.3/4 − 1/5 =
  20. 20.A tank is 5/6 full of water. Then water filling 1/3 of the tank is used. What fraction of the tank is full now? =
  21. 21.A tank is 7/10 full of water. Then water filling 1/2 of the tank is used. What fraction of the tank is full now? =
  22. 22.A tank is 4/5 full of water. Then water filling 1/6 of the tank is used. What fraction of the tank is full now? =
  23. 23.A bottle has 3/8 litre of juice. Kabir drinks 1/4 litre. How much juice is left (in litres)? =
  24. 24.2/3 − 2/7 =
  25. 25.3/8 − 1/4 =
  26. 26.A bottle has 3/4 litre of juice. Meera drinks 3/10 litre. How much juice is left (in litres)? =
  27. 27.2/3 − 2/5 =
  28. 28.A bottle has 9/10 litre of juice. Ishaan drinks 1/2 litre. How much juice is left (in litres)? =
  29. 29.A bottle has 1/3 litre of juice. Anaya drinks 1/4 litre. How much juice is left (in litres)? =
  30. 30.A bottle has 1/2 litre of juice. Diya drinks 1/10 litre. How much juice is left (in litres)? =
  31. 31.A bottle has 5/6 litre of juice. Rohan drinks 7/9 litre. How much juice is left (in litres)? =
  32. 32.2/5 − 3/10 =
  33. 33.A bottle has 6/7 litre of juice. Vihaan drinks 2/3 litre. How much juice is left (in litres)? =
  34. 34.A tank is 5/6 full of water. Then water filling 5/8 of the tank is used. What fraction of the tank is full now? =
  35. 35.3/5 − 1/2 =
  36. 36.2/3 − 3/8 =
  37. 37.5/6 − 3/4 =
  38. 38.1/2 − 1/7 =
  39. 39.4/5 − 1/2 =
  40. 40.A bottle has 1/2 litre of juice. Tara drinks 1/7 litre. How much juice is left (in litres)? =

Answer key

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

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