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Subtract Fractions with Different Denominators Worksheet

Fractions lesson 16: Subtracting fractions: different denominators · Set 923 · 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. 1.2/9 − 1/6 =
  2. 2.8/9 − 1/3 =
  3. 3.4/7 − 1/3 =
  4. 4.3/5 − 3/10 =
  5. 5.Kabir has a ribbon 3/4 m long and cuts off 2/5 m. How long is the ribbon now (in m)? =
  6. 6.A bottle has 5/6 litre of juice. Rohan drinks 7/9 litre. How much juice is left (in litres)? =
  7. 7.Vihaan has a ribbon 3/4 m long and cuts off 1/2 m. How long is the ribbon now (in m)? =
  8. 8.Meera has a ribbon 7/10 m long and cuts off 3/5 m. How long is the ribbon now (in m)? =
  9. 9.Meera has a ribbon 1/3 m long and cuts off 2/9 m. How long is the ribbon now (in m)? =
  10. 10.2/3 − 2/9 =
  11. 11.5/8 − 1/6 =
  12. 12.7/10 − 2/5 =
  13. 13.5/6 − 1/3 =
  14. 14.Diya has a ribbon 3/4 m long and cuts off 1/7 m. How long is the ribbon now (in m)? =
  15. 15.1/2 − 2/9 =
  16. 16.A tank is 5/6 full of water. Then water filling 3/5 of the tank is used. What fraction of the tank is full now? =
  17. 17.A tank is 3/4 full of water. Then water filling 3/8 of the tank is used. What fraction of the tank is full now? =
  18. 18.A bottle has 2/3 litre of juice. Aarav drinks 2/5 litre. How much juice is left (in litres)? =
  19. 19.2/3 − 1/8 =
  20. 20.1/2 − 2/7 =
  21. 21.A bottle has 2/3 litre of juice. Rohan drinks 2/5 litre. How much juice is left (in litres)? =
  22. 22.5/7 − 1/4 =
  23. 23.A bottle has 1/4 litre of juice. Aarav drinks 1/7 litre. How much juice is left (in litres)? =
  24. 24.5/9 − 1/3 =
  25. 25.A tank is 2/5 full of water. Then water filling 1/10 of the tank is used. What fraction of the tank is full now? =
  26. 26.4/7 − 1/2 =
  27. 27.A bottle has 5/6 litre of juice. Tara drinks 1/8 litre. How much juice is left (in litres)? =
  28. 28.7/8 − 1/4 =
  29. 29.A tank is 1/4 full of water. Then water filling 1/10 of the tank is used. What fraction of the tank is full now? =
  30. 30.Rohan has a ribbon 5/7 m long and cuts off 1/2 m. How long is the ribbon now (in m)? =
  31. 31.1/2 − 1/9 =
  32. 32.Arjun has a ribbon 2/3 m long and cuts off 1/9 m. How long is the ribbon now (in m)? =
  33. 33.5/6 − 7/10 =
  34. 34.A bottle has 2/3 litre of juice. Arjun drinks 2/9 litre. How much juice is left (in litres)? =
  35. 35.1/2 − 1/10 =
  36. 36.A tank is 6/7 full of water. Then water filling 2/3 of the tank is used. What fraction of the tank is full now? =
  37. 37.Ishaan has a ribbon 1/2 m long and cuts off 2/7 m. How long is the ribbon now (in m)? =
  38. 38.A bottle has 1/5 litre of juice. Anaya drinks 1/6 litre. How much juice is left (in litres)? =
  39. 39.3/4 − 1/7 =
  40. 40.Riya has a ribbon 9/10 m long and cuts off 2/5 m. How long is the ribbon now (in m)? =

Answer key

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

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