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Subtract Fractions with Different Denominators Worksheet

Fractions lesson 16: Subtracting fractions: different denominators · Set 396 · 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. 1.7/10 − 1/6 =
  2. 2.A tank is 2/3 full of water. Then water filling 1/7 of the tank is used. What fraction of the tank is full now? =
  3. 3.3/8 − 1/4 =
  4. 4.8/9 − 1/3 =
  5. 5.A tank is 1/2 full of water. Then water filling 1/7 of the tank is used. What fraction of the tank is full now? =
  6. 6.1/3 − 2/9 =
  7. 7.Aarav has a ribbon 1/2 m long and cuts off 1/4 m. How long is the ribbon now (in m)? =
  8. 8.Tara has a ribbon 3/10 m long and cuts off 1/6 m. How long is the ribbon now (in m)? =
  9. 9.2/5 − 1/10 =
  10. 10.A tank is 1/5 full of water. Then water filling 1/6 of the tank is used. What fraction of the tank is full now? =
  11. 11.3/5 − 3/10 =
  12. 12.5/6 − 3/8 =
  13. 13.Diya has a ribbon 4/5 m long and cuts off 1/10 m. How long is the ribbon now (in m)? =
  14. 14.Ishaan has a ribbon 2/3 m long and cuts off 1/2 m. How long is the ribbon now (in m)? =
  15. 15.A bottle has 8/9 litre of juice. Kabir drinks 1/3 litre. How much juice is left (in litres)? =
  16. 16.5/6 − 1/9 =
  17. 17.Kabir has a ribbon 5/7 m long and cuts off 1/3 m. How long is the ribbon now (in m)? =
  18. 18.A bottle has 8/9 litre of juice. Diya drinks 1/6 litre. How much juice is left (in litres)? =
  19. 19.A tank is 1/2 full of water. Then water filling 1/9 of the tank is used. What fraction of the tank is full now? =
  20. 20.7/8 − 3/4 =
  21. 21.A bottle has 2/3 litre of juice. Arjun drinks 1/9 litre. How much juice is left (in litres)? =
  22. 22.A tank is 7/10 full of water. Then water filling 1/4 of the tank is used. What fraction of the tank is full now? =
  23. 23.2/5 − 1/6 =
  24. 24.9/10 − 3/4 =
  25. 25.A bottle has 7/10 litre of juice. Kabir drinks 1/5 litre. How much juice is left (in litres)? =
  26. 26.5/6 − 3/10 =
  27. 27.A tank is 1/3 full of water. Then water filling 2/9 of the tank is used. What fraction of the tank is full now? =
  28. 28.5/9 − 1/2 =
  29. 29.1/4 − 1/5 =
  30. 30.A bottle has 2/3 litre of juice. Riya drinks 3/7 litre. How much juice is left (in litres)? =
  31. 31.A tank is 2/3 full of water. Then water filling 5/8 of the tank is used. What fraction of the tank is full now? =
  32. 32.7/8 − 1/6 =
  33. 33.Ishaan has a ribbon 5/9 m long and cuts off 1/3 m. How long is the ribbon now (in m)? =
  34. 34.2/3 − 2/9 =
  35. 35.A bottle has 4/7 litre of juice. Anaya drinks 1/3 litre. How much juice is left (in litres)? =
  36. 36.1/3 − 3/10 =
  37. 37.A tank is 5/6 full of water. Then water filling 3/4 of the tank is used. What fraction of the tank is full now? =
  38. 38.A tank is 7/10 full of water. Then water filling 1/5 of the tank is used. What fraction of the tank is full now? =
  39. 39.9/10 − 3/5 =
  40. 40.3/5 − 1/3 =

Answer key

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

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