FreeMath
Grade 5hard

Subtracting Fractions with Unlike Denominators Practice

Subtracting 2/3 − 1/4 requires three steps most fifth graders haven't fully internalized: find a common denominator, convert both fractions, then subtract and simplify. This drill mixes denominators from 2 to 8 so your child doesn't memorize one pattern (like halves and quarters) without really understanding the algorithm. Always ask for the answer in simplest form — if they leave 4/8 instead of writing 1/2, the work isn't quite finished. Most kids need 3-4 weeks of regular practice before this feels natural, so don't worry if it's slow at first.

Loading...

All 18 Practice Problems

Every question in this set. Solve them on paper, or use the interactive tool above for instant feedback and hints.

  1. 1.2/3 − 1/2 = ? (simplest form, format: N/D or whole)
  2. 2.3/4 − 3/6 = ? (simplest form, format: N/D or whole)
  3. 3.4/5 − 5/7 = ? (simplest form, format: N/D or whole)
  4. 4.2/3 − 3/8 = ? (simplest form, format: N/D or whole)
  5. 5.4/6 − 4/8 = ? (simplest form, format: N/D or whole)
  6. 6.6/8 − 5/7 = ? (simplest form, format: N/D or whole)
  7. 7.3/4 − 2/8 = ? (simplest form, format: N/D or whole)
  8. 8.1/2 − 3/8 = ? (simplest form, format: N/D or whole)
  9. 9.3/4 − 1/2 = ? (simplest form, format: N/D or whole)
  10. 10.4/5 − 1/7 = ? (simplest form, format: N/D or whole)
  11. 11.2/4 − 1/8 = ? (simplest form, format: N/D or whole)
  12. 12.1/2 − 1/3 = ? (simplest form, format: N/D or whole)
  13. 13.4/5 − 2/4 = ? (simplest form, format: N/D or whole)
  14. 14.4/7 − 3/6 = ? (simplest form, format: N/D or whole)
  15. 15.2/3 − 2/6 = ? (simplest form, format: N/D or whole)
  16. 16.2/3 − 2/5 = ? (simplest form, format: N/D or whole)
  17. 17.1/2 − 2/6 = ? (simplest form, format: N/D or whole)
  18. 18.3/4 − 4/8 = ? (simplest form, format: N/D or whole)
Show answer key
  1. 1.2/3 − 1/2 = ? (simplest form, format: N/D or whole) Answer: 1/6
  2. 2.3/4 − 3/6 = ? (simplest form, format: N/D or whole) Answer: 1/4
  3. 3.4/5 − 5/7 = ? (simplest form, format: N/D or whole) Answer: 3/35
  4. 4.2/3 − 3/8 = ? (simplest form, format: N/D or whole) Answer: 7/24
  5. 5.4/6 − 4/8 = ? (simplest form, format: N/D or whole) Answer: 1/6
  6. 6.6/8 − 5/7 = ? (simplest form, format: N/D or whole) Answer: 1/28
  7. 7.3/4 − 2/8 = ? (simplest form, format: N/D or whole) Answer: 1/2
  8. 8.1/2 − 3/8 = ? (simplest form, format: N/D or whole) Answer: 1/8
  9. 9.3/4 − 1/2 = ? (simplest form, format: N/D or whole) Answer: 1/4
  10. 10.4/5 − 1/7 = ? (simplest form, format: N/D or whole) Answer: 23/35
  11. 11.2/4 − 1/8 = ? (simplest form, format: N/D or whole) Answer: 3/8
  12. 12.1/2 − 1/3 = ? (simplest form, format: N/D or whole) Answer: 1/6
  13. 13.4/5 − 2/4 = ? (simplest form, format: N/D or whole) Answer: 3/10
  14. 14.4/7 − 3/6 = ? (simplest form, format: N/D or whole) Answer: 1/14
  15. 15.2/3 − 2/6 = ? (simplest form, format: N/D or whole) Answer: 1/3
  16. 16.2/3 − 2/5 = ? (simplest form, format: N/D or whole) Answer: 4/15
  17. 17.1/2 − 2/6 = ? (simplest form, format: N/D or whole) Answer: 1/6
  18. 18.3/4 − 4/8 = ? (simplest form, format: N/D or whole) Answer: 1/4

Want more practice? See all Grade 5 practice →