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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 21 · 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. 1.5/8 − 2/4 =
  2. 2.10/12 − 1/10 =
  3. 3.4/5 + 1/2 =
  4. 4.4/8 − 1/10 =
  5. 5.3/7 + 4/12 =
  6. 6.3/4 − 6/11 =
  7. 7.1/4 + 2/4 =
  8. 8.3/5 + 1/7 =
  9. 9.2/4 − 1/3 =
  10. 10.1/2 + 10/12 =
  11. 11.3/5 − 1/3 =
  12. 12.6/11 + 1/3 =
  13. 13.3/5 − 1/5 =
  14. 14.6/10 + 2/11 =
  15. 15.2/4 − 3/9 =
  16. 16.1/4 + 2/5 =
  17. 17.4/7 + 1/2 =
  18. 18.5/12 − 1/11 =
  19. 19.6/8 − 2/11 =
  20. 20.2/3 − 1/2 =
  21. 21.4/5 − 1/10 =
  22. 22.5/6 − 7/9 =
  23. 23.5/7 + 5/9 =
  24. 24.1/4 − 1/8 =
  25. 25.5/11 − 1/6 =
  26. 26.1/11 + 1/3 =
  27. 27.5/7 + 2/9 =
  28. 28.10/12 − 8/10 =
  29. 29.2/3 + 2/3 =
  30. 30.1/3 + 2/7 =
  31. 31.1/3 + 3/5 =
  32. 32.9/10 + 4/7 =
  33. 33.1/12 + 1/2 =
  34. 34.3/11 + 10/12 =
  35. 35.6/7 − 7/9 =
  36. 36.6/9 + 1/5 =
  37. 37.3/4 − 1/6 =
  38. 38.2/3 + 2/9 =
  39. 39.1/11 + 1/8 =
  40. 40.3/4 + 7/10 =

Answer key

  1. 1/8
  2. 11/15
  3. 13/10
  4. 2/5
  5. 16/21
  6. 9/44
  7. 3/4
  8. 26/35
  9. 1/6
  10. 4/3
  11. 4/15
  12. 29/33
  13. 2/5
  14. 43/55
  15. 1/6
  16. 13/20
  17. 15/14
  18. 43/132
  19. 25/44
  20. 1/6
  21. 7/10
  22. 1/18
  23. 80/63
  24. 1/8
  25. 19/66
  26. 14/33
  27. 59/63
  28. 1/30
  29. 4/3
  30. 13/21
  31. 14/15
  32. 103/70
  33. 7/12
  34. 73/66
  35. 5/63
  36. 13/15
  37. 7/12
  38. 8/9
  39. 19/88
  40. 29/20

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