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Subtract Fractions with Different Denominators Worksheet

Fractions lesson 16: Subtracting fractions: different denominators · Set 880 · 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.Meera has a ribbon 5/8 m long and cuts off 1/6 m. How long is the ribbon now (in m)? =
  2. 2.Aarav has a ribbon 1/3 m long and cuts off 2/7 m. How long is the ribbon now (in m)? =
  3. 3.Tara has a ribbon 1/3 m long and cuts off 2/7 m. How long is the ribbon now (in m)? =
  4. 4.A bottle has 5/6 litre of juice. Meera drinks 5/9 litre. How much juice is left (in litres)? =
  5. 5.Diya has a ribbon 3/4 m long and cuts off 3/7 m. How long is the ribbon now (in m)? =
  6. 6.9/10 − 3/5 =
  7. 7.9/10 − 1/3 =
  8. 8.7/10 − 1/3 =
  9. 9.2/3 − 1/4 =
  10. 10.4/5 − 1/2 =
  11. 11.A bottle has 4/5 litre of juice. Meera drinks 3/10 litre. How much juice is left (in litres)? =
  12. 12.A tank is 9/10 full of water. Then water filling 3/4 of the tank is used. What fraction of the tank is full now? =
  13. 13.6/7 − 1/4 =
  14. 14.A tank is 7/9 full of water. Then water filling 1/3 of the tank is used. What fraction of the tank is full now? =
  15. 15.4/5 − 1/10 =
  16. 16.1/2 − 2/7 =
  17. 17.3/8 − 1/3 =
  18. 18.Anaya has a ribbon 3/8 m long and cuts off 1/4 m. How long is the ribbon now (in m)? =
  19. 19.9/10 − 1/6 =
  20. 20.5/7 − 1/2 =
  21. 21.A bottle has 2/3 litre of juice. Sara drinks 2/5 litre. How much juice is left (in litres)? =
  22. 22.A bottle has 2/9 litre of juice. Vihaan drinks 1/6 litre. How much juice is left (in litres)? =
  23. 23.7/10 − 2/5 =
  24. 24.A bottle has 1/3 litre of juice. Arjun drinks 1/9 litre. How much juice is left (in litres)? =
  25. 25.Sara has a ribbon 5/7 m long and cuts off 1/4 m. How long is the ribbon now (in m)? =
  26. 26.A tank is 1/2 full of water. Then water filling 4/9 of the tank is used. What fraction of the tank is full now? =
  27. 27.1/2 − 3/10 =
  28. 28.1/2 − 3/7 =
  29. 29.A bottle has 1/6 litre of juice. Aarav drinks 1/10 litre. How much juice is left (in litres)? =
  30. 30.A bottle has 4/5 litre of juice. Kabir drinks 3/10 litre. How much juice is left (in litres)? =
  31. 31.7/8 − 2/3 =
  32. 32.5/6 − 2/3 =
  33. 33.Riya has a ribbon 3/4 m long and cuts off 4/7 m. How long is the ribbon now (in m)? =
  34. 34.A tank is 5/6 full of water. Then water filling 1/4 of the tank is used. What fraction of the tank is full now? =
  35. 35.A tank is 3/4 full of water. Then water filling 4/7 of the tank is used. What fraction of the tank is full now? =
  36. 36.Diya has a ribbon 3/5 m long and cuts off 1/6 m. How long is the ribbon now (in m)? =
  37. 37.3/5 − 1/4 =
  38. 38.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? =
  39. 39.A bottle has 4/9 litre of juice. Tara drinks 1/6 litre. How much juice is left (in litres)? =
  40. 40.Meera has a ribbon 8/9 m long and cuts off 2/3 m. How long is the ribbon now (in m)? =

Answer key

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

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