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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 589 · 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. 1.2/3 + 1/7 =
  2. 2.7/8 + 10/12 =
  3. 3.8/11 − 6/9 =
  4. 4.3/4 + 1/10 =
  5. 5.1/3 − 1/5 =
  6. 6.2/3 − 2/4 =
  7. 7.5/12 − 3/8 =
  8. 8.6/9 − 3/8 =
  9. 9.1/2 − 3/8 =
  10. 10.1/2 + 1/2 =
  11. 11.1/2 − 2/5 =
  12. 12.2/4 + 1/4 =
  13. 13.4/10 + 1/5 =
  14. 14.3/11 + 4/6 =
  15. 15.1/2 − 1/12 =
  16. 16.6/9 + 1/2 =
  17. 17.6/9 + 1/3 =
  18. 18.1/4 + 5/12 =
  19. 19.3/8 + 2/9 =
  20. 20.4/5 − 2/3 =
  21. 21.1/2 + 3/6 =
  22. 22.1/8 + 2/4 =
  23. 23.3/4 − 2/5 =
  24. 24.7/11 + 3/12 =
  25. 25.2/7 + 1/12 =
  26. 26.1/10 + 4/9 =
  27. 27.3/11 + 1/5 =
  28. 28.3/8 + 3/11 =
  29. 29.6/12 − 2/9 =
  30. 30.4/5 + 5/7 =
  31. 31.2/4 − 1/4 =
  32. 32.4/5 + 1/2 =
  33. 33.10/12 + 1/3 =
  34. 34.4/8 + 1/3 =
  35. 35.2/4 − 2/5 =
  36. 36.1/6 + 4/12 =
  37. 37.11/12 + 11/12 =
  38. 38.1/5 + 6/9 =
  39. 39.2/3 + 1/5 =
  40. 40.2/4 + 5/10 =

Answer key

  1. 17/21
  2. 41/24
  3. 2/33
  4. 17/20
  5. 2/15
  6. 1/6
  7. 1/24
  8. 7/24
  9. 1/8
  10. 1
  11. 1/10
  12. 3/4
  13. 3/5
  14. 31/33
  15. 5/12
  16. 7/6
  17. 1
  18. 2/3
  19. 43/72
  20. 2/15
  21. 1
  22. 5/8
  23. 7/20
  24. 39/44
  25. 31/84
  26. 49/90
  27. 26/55
  28. 57/88
  29. 5/18
  30. 53/35
  31. 1/4
  32. 13/10
  33. 7/6
  34. 5/6
  35. 1/10
  36. 1/2
  37. 11/6
  38. 13/15
  39. 13/15
  40. 1

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