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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 277 · 40 sums
TalentJR

The trick (Urdhva Tiryagbhyam): Top: multiply crosswise — first top × second bottom, then first bottom × second top — and add (or subtract). Bottom: multiply the two bottoms. Simplify by dividing top and bottom by their HCF. Give the answer as a fraction like 17/12.

NameDateTime takenScore ___ / 40
  1. 1.7/9 − 3/4 =
  2. 2.2/10 − 1/6 =
  3. 3.1/12 + 3/12 =
  4. 4.3/4 − 7/12 =
  5. 5.1/2 + 5/7 =
  6. 6.2/3 + 2/3 =
  7. 7.2/3 + 8/12 =
  8. 8.1/3 + 1/2 =
  9. 9.8/9 − 1/6 =
  10. 10.5/6 − 1/2 =
  11. 11.2/9 − 1/12 =
  12. 12.1/2 + 1/2 =
  13. 13.3/9 + 7/9 =
  14. 14.4/7 + 2/3 =
  15. 15.1/2 + 4/9 =
  16. 16.1/2 + 2/5 =
  17. 17.11/12 − 1/10 =
  18. 18.9/12 + 4/12 =
  19. 19.2/8 − 1/9 =
  20. 20.10/11 − 1/9 =
  21. 21.6/8 + 4/10 =
  22. 22.1/3 + 1/2 =
  23. 23.1/4 + 3/6 =
  24. 24.5/6 + 10/12 =
  25. 25.6/8 + 4/9 =
  26. 26.1/2 + 6/11 =
  27. 27.2/4 + 7/9 =
  28. 28.2/4 − 3/9 =
  29. 29.7/11 − 7/12 =
  30. 30.1/12 + 2/5 =
  31. 31.2/4 − 2/7 =
  32. 32.5/11 + 8/9 =
  33. 33.1/2 + 1/7 =
  34. 34.2/3 + 1/7 =
  35. 35.5/6 − 1/7 =
  36. 36.2/5 − 1/4 =
  37. 37.1/2 − 2/8 =
  38. 38.2/4 − 1/3 =
  39. 39.3/8 + 1/2 =
  40. 40.3/5 − 1/3 =

Answer key

  1. 1/36
  2. 1/30
  3. 1/3
  4. 1/6
  5. 17/14
  6. 4/3
  7. 4/3
  8. 5/6
  9. 13/18
  10. 1/3
  11. 5/36
  12. 1
  13. 10/9
  14. 26/21
  15. 17/18
  16. 9/10
  17. 49/60
  18. 13/12
  19. 5/36
  20. 79/99
  21. 23/20
  22. 5/6
  23. 3/4
  24. 5/3
  25. 43/36
  26. 23/22
  27. 23/18
  28. 1/6
  29. 7/132
  30. 29/60
  31. 3/14
  32. 133/99
  33. 9/14
  34. 17/21
  35. 29/42
  36. 3/20
  37. 1/4
  38. 1/6
  39. 7/8
  40. 4/15

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