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Subtract Fractions with Different Denominators Worksheet

Fractions lesson 16: Subtracting fractions: different denominators · Set 364 · 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. 1.2/3 − 2/9 =
  2. 2.7/10 − 3/5 =
  3. 3.2/3 − 1/9 =
  4. 4.7/8 − 1/6 =
  5. 5.A tank is 1/2 full of water. Then water filling 1/3 of the tank is used. What fraction of the tank is full now? =
  6. 6.5/8 − 1/6 =
  7. 7.4/5 − 1/10 =
  8. 8.A tank is 5/8 full of water. Then water filling 1/6 of the tank is used. What fraction of the tank is full now? =
  9. 9.7/8 − 1/3 =
  10. 10.4/5 − 1/2 =
  11. 11.A bottle has 2/5 litre of juice. Anaya drinks 1/6 litre. How much juice is left (in litres)? =
  12. 12.A tank is 1/3 full of water. Then water filling 1/5 of the tank is used. What fraction of the tank is full now? =
  13. 13.9/10 − 5/6 =
  14. 14.3/7 − 1/3 =
  15. 15.Arjun has a ribbon 1/3 m long and cuts off 2/7 m. How long is the ribbon now (in m)? =
  16. 16.A bottle has 1/3 litre of juice. Tara drinks 1/7 litre. How much juice is left (in litres)? =
  17. 17.Vihaan has a ribbon 5/6 m long and cuts off 7/9 m. How long is the ribbon now (in m)? =
  18. 18.2/3 − 2/5 =
  19. 19.3/4 − 3/10 =
  20. 20.Meera has a ribbon 4/9 m long and cuts off 1/6 m. How long is the ribbon now (in m)? =
  21. 21.A bottle has 4/7 litre of juice. Kabir drinks 1/2 litre. How much juice is left (in litres)? =
  22. 22.5/6 − 3/10 =
  23. 23.5/6 − 4/9 =
  24. 24.9/10 − 3/5 =
  25. 25.A tank is 8/9 full of water. Then water filling 1/3 of the tank is used. What fraction of the tank is full now? =
  26. 26.1/5 − 1/6 =
  27. 27.A tank is 4/9 full of water. Then water filling 1/3 of the tank is used. What fraction of the tank is full now? =
  28. 28.5/6 − 5/8 =
  29. 29.A tank is 3/4 full of water. Then water filling 1/8 of the tank is used. What fraction of the tank is full now? =
  30. 30.A tank is 1/2 full of water. Then water filling 3/7 of the tank is used. What fraction of the tank is full now? =
  31. 31.A bottle has 1/4 litre of juice. Rohan drinks 1/5 litre. How much juice is left (in litres)? =
  32. 32.3/4 − 3/7 =
  33. 33.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? =
  34. 34.A bottle has 7/9 litre of juice. Aarav drinks 2/3 litre. How much juice is left (in litres)? =
  35. 35.1/2 − 4/9 =
  36. 36.A bottle has 4/9 litre of juice. Sara drinks 1/3 litre. How much juice is left (in litres)? =
  37. 37.A bottle has 1/2 litre of juice. Ishaan drinks 1/8 litre. How much juice is left (in litres)? =
  38. 38.A bottle has 9/10 litre of juice. Kabir drinks 2/5 litre. How much juice is left (in litres)? =
  39. 39.A bottle has 6/7 litre of juice. Riya drinks 1/2 litre. How much juice is left (in litres)? =
  40. 40.Arjun has a ribbon 3/4 m long and cuts off 3/5 m. How long is the ribbon now (in m)? =

Answer key

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

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