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Subtract Fractions with Different Denominators Worksheet

Fractions lesson 16: Subtracting fractions: different denominators · Set 655 · 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. 1.4/7 − 1/2 =
  2. 2.Ishaan has a ribbon 6/7 m long and cuts off 1/4 m. How long is the ribbon now (in m)? =
  3. 3.1/2 − 2/5 =
  4. 4.A bottle has 3/4 litre of juice. Anaya drinks 3/7 litre. How much juice is left (in litres)? =
  5. 5.4/5 − 1/10 =
  6. 6.5/9 − 1/6 =
  7. 7.5/6 − 5/9 =
  8. 8.5/7 − 1/3 =
  9. 9.5/7 − 1/2 =
  10. 10.5/6 − 7/9 =
  11. 11.A tank is 3/4 full of water. Then water filling 3/7 of the tank is used. What fraction of the tank is full now? =
  12. 12.A tank is 9/10 full of water. Then water filling 2/5 of the tank is used. What fraction of the tank is full now? =
  13. 13.2/3 − 4/9 =
  14. 14.A bottle has 3/8 litre of juice. Aarav drinks 1/6 litre. How much juice is left (in litres)? =
  15. 15.1/4 − 1/5 =
  16. 16.A bottle has 5/6 litre of juice. Tara drinks 4/9 litre. How much juice is left (in litres)? =
  17. 17.A tank is 4/5 full of water. Then water filling 7/10 of the tank is used. What fraction of the tank is full now? =
  18. 18.Anaya has a ribbon 7/9 m long and cuts off 2/3 m. How long is the ribbon now (in m)? =
  19. 19.A tank is 4/5 full of water. Then water filling 1/10 of the tank is used. What fraction of the tank is full now? =
  20. 20.5/6 − 4/9 =
  21. 21.9/10 − 2/3 =
  22. 22.6/7 − 1/4 =
  23. 23.A bottle has 2/3 litre of juice. Anaya drinks 2/5 litre. How much juice is left (in litres)? =
  24. 24.Riya has a ribbon 5/6 m long and cuts off 7/10 m. How long is the ribbon now (in m)? =
  25. 25.2/9 − 1/6 =
  26. 26.A bottle has 9/10 litre of juice. Meera drinks 3/5 litre. How much juice is left (in litres)? =
  27. 27.3/4 − 2/7 =
  28. 28.2/5 − 3/10 =
  29. 29.1/3 − 1/7 =
  30. 30.4/5 − 1/2 =
  31. 31.1/3 − 1/5 =
  32. 32.A bottle has 5/6 litre of juice. Meera drinks 1/8 litre. How much juice is left (in litres)? =
  33. 33.A bottle has 5/6 litre of juice. Anaya drinks 7/9 litre. How much juice is left (in litres)? =
  34. 34.7/8 − 1/4 =
  35. 35.3/10 − 1/4 =
  36. 36.1/2 − 2/7 =
  37. 37.3/4 − 3/5 =
  38. 38.2/5 − 1/4 =
  39. 39.A bottle has 7/9 litre of juice. Anaya drinks 1/3 litre. How much juice is left (in litres)? =
  40. 40.A bottle has 1/3 litre of juice. Tara drinks 1/8 litre. How much juice is left (in litres)? =

Answer key

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

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