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Subtract Fractions with Different Denominators Worksheet

Fractions lesson 16: Subtracting fractions: different denominators · Set 203 · 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 − 4/9 =
  2. 2.4/9 − 1/3 =
  3. 3.2/3 − 1/6 =
  4. 4.Tara has a ribbon 3/10 m long and cuts off 1/4 m. How long is the ribbon now (in m)? =
  5. 5.3/4 − 1/3 =
  6. 6.A bottle has 7/10 litre of juice. Tara drinks 2/3 litre. How much juice is left (in litres)? =
  7. 7.7/10 − 1/5 =
  8. 8.1/3 − 1/9 =
  9. 9.A bottle has 2/3 litre of juice. Ishaan drinks 4/9 litre. How much juice is left (in litres)? =
  10. 10.A bottle has 7/10 litre of juice. Aarav drinks 1/2 litre. How much juice is left (in litres)? =
  11. 11.A bottle has 8/9 litre of juice. Meera drinks 5/6 litre. How much juice is left (in litres)? =
  12. 12.5/9 − 1/6 =
  13. 13.3/8 − 1/4 =
  14. 14.3/4 − 4/7 =
  15. 15.3/4 − 2/7 =
  16. 16.A tank is 4/5 full of water. Then water filling 3/4 of the tank is used. What fraction of the tank is full now? =
  17. 17.Anaya has a ribbon 1/2 m long and cuts off 3/8 m. How long is the ribbon now (in m)? =
  18. 18.1/6 − 1/8 =
  19. 19.Ishaan has a ribbon 3/5 m long and cuts off 1/2 m. How long is the ribbon now (in m)? =
  20. 20.1/2 − 2/5 =
  21. 21.A bottle has 9/10 litre of juice. Vihaan drinks 1/3 litre. How much juice is left (in litres)? =
  22. 22.Meera has a ribbon 5/6 m long and cuts off 4/9 m. How long is the ribbon now (in m)? =
  23. 23.A tank is 5/6 full of water. Then water filling 5/9 of the tank is used. What fraction of the tank is full now? =
  24. 24.Diya has a ribbon 1/4 m long and cuts off 1/5 m. How long is the ribbon now (in m)? =
  25. 25.3/10 − 1/4 =
  26. 26.A bottle has 1/3 litre of juice. Tara drinks 1/10 litre. How much juice is left (in litres)? =
  27. 27.7/8 − 1/4 =
  28. 28.1/2 − 1/5 =
  29. 29.3/5 − 1/4 =
  30. 30.3/10 − 1/5 =
  31. 31.A tank is 5/7 full of water. Then water filling 1/2 of the tank is used. What fraction of the tank is full now? =
  32. 32.3/4 − 3/5 =
  33. 33.2/5 − 1/4 =
  34. 34.1/3 − 1/7 =
  35. 35.Diya has a ribbon 1/3 m long and cuts off 1/9 m. How long is the ribbon now (in m)? =
  36. 36.A bottle has 7/9 litre of juice. Ishaan drinks 1/6 litre. How much juice is left (in litres)? =
  37. 37.A tank is 3/8 full of water. Then water filling 1/6 of the tank is used. What fraction of the tank is full now? =
  38. 38.A bottle has 6/7 litre of juice. Meera drinks 1/3 litre. How much juice is left (in litres)? =
  39. 39.8/9 − 2/3 =
  40. 40.A bottle has 5/9 litre of juice. Kabir drinks 1/3 litre. How much juice is left (in litres)? =

Answer key

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

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