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Subtract Fractions with Different Denominators Worksheet

Fractions lesson 16: Subtracting fractions: different denominators · Set 245 · 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. 1.1/2 − 1/9 =
  2. 2.6/7 − 3/4 =
  3. 3.Vihaan has a ribbon 7/9 m long and cuts off 2/3 m. How long is the ribbon now (in m)? =
  4. 4.2/5 − 1/10 =
  5. 5.Meera has a ribbon 4/7 m long and cuts off 1/3 m. How long is the ribbon now (in m)? =
  6. 6.5/6 − 3/10 =
  7. 7.A tank is 7/10 full of water. Then water filling 1/3 of the tank is used. What fraction of the tank is full now? =
  8. 8.1/5 − 1/6 =
  9. 9.8/9 − 5/6 =
  10. 10.A bottle has 4/7 litre of juice. Kabir drinks 1/4 litre. How much juice is left (in litres)? =
  11. 11.3/10 − 1/4 =
  12. 12.5/7 − 1/3 =
  13. 13.Arjun has a ribbon 3/4 m long and cuts off 1/3 m. How long is the ribbon now (in m)? =
  14. 14.1/2 − 4/9 =
  15. 15.Diya has a ribbon 3/4 m long and cuts off 7/10 m. How long is the ribbon now (in m)? =
  16. 16.1/2 − 2/5 =
  17. 17.8/9 − 2/3 =
  18. 18.A tank is 5/6 full of water. Then water filling 2/3 of the tank is used. What fraction of the tank is full now? =
  19. 19.A tank is 8/9 full of water. Then water filling 5/6 of the tank is used. What fraction of the tank is full now? =
  20. 20.7/8 − 2/3 =
  21. 21.9/10 − 1/2 =
  22. 22.A tank is 7/8 full of water. Then water filling 3/4 of the tank is used. What fraction of the tank is full now? =
  23. 23.Anaya has a ribbon 2/5 m long and cuts off 1/4 m. How long is the ribbon now (in m)? =
  24. 24.A bottle has 3/4 litre of juice. Arjun drinks 1/10 litre. How much juice is left (in litres)? =
  25. 25.A bottle has 6/7 litre of juice. Kabir drinks 1/2 litre. How much juice is left (in litres)? =
  26. 26.4/7 − 1/4 =
  27. 27.Riya has a ribbon 7/8 m long and cuts off 1/3 m. How long is the ribbon now (in m)? =
  28. 28.5/6 − 7/9 =
  29. 29.A tank is 9/10 full of water. Then water filling 2/3 of the tank is used. What fraction of the tank is full now? =
  30. 30.Riya has a ribbon 2/5 m long and cuts off 1/10 m. How long is the ribbon now (in m)? =
  31. 31.2/5 − 1/4 =
  32. 32.9/10 − 3/5 =
  33. 33.A tank is 5/7 full of water. Then water filling 1/4 of the tank is used. What fraction of the tank is full now? =
  34. 34.A bottle has 1/2 litre of juice. Diya drinks 3/8 litre. How much juice is left (in litres)? =
  35. 35.A tank is 3/4 full of water. Then water filling 5/7 of the tank is used. What fraction of the tank is full now? =
  36. 36.A bottle has 8/9 litre of juice. Ishaan drinks 2/3 litre. How much juice is left (in litres)? =
  37. 37.A bottle has 2/5 litre of juice. Kabir drinks 3/10 litre. How much juice is left (in litres)? =
  38. 38.Vihaan has a ribbon 3/7 m long and cuts off 1/4 m. How long is the ribbon now (in m)? =
  39. 39.3/4 − 2/5 =
  40. 40.Riya has a ribbon 7/8 m long and cuts off 1/4 m. How long is the ribbon now (in m)? =

Answer key

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

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