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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 294 · 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. 1.1/2 − 1/3 =
  2. 2.1/3 + 9/12 =
  3. 3.1/11 + 5/12 =
  4. 4.1/6 + 3/7 =
  5. 5.1/2 + 1/4 =
  6. 6.8/10 + 1/2 =
  7. 7.3/5 + 2/3 =
  8. 8.10/12 − 1/6 =
  9. 9.1/8 + 8/10 =
  10. 10.1/2 − 3/11 =
  11. 11.1/8 + 8/9 =
  12. 12.9/11 + 6/10 =
  13. 13.3/4 − 1/2 =
  14. 14.5/7 + 6/9 =
  15. 15.7/11 − 1/5 =
  16. 16.5/12 + 1/4 =
  17. 17.2/5 + 1/2 =
  18. 18.1/3 + 4/5 =
  19. 19.5/7 − 1/3 =
  20. 20.2/6 + 4/5 =
  21. 21.4/5 + 2/5 =
  22. 22.1/11 + 2/5 =
  23. 23.2/3 + 2/10 =
  24. 24.3/12 − 2/10 =
  25. 25.1/10 + 1/10 =
  26. 26.5/6 + 2/11 =
  27. 27.2/8 + 7/12 =
  28. 28.2/5 − 3/8 =
  29. 29.2/7 + 6/7 =
  30. 30.6/7 − 9/11 =
  31. 31.7/9 + 1/5 =
  32. 32.7/8 − 3/5 =
  33. 33.2/3 + 1/6 =
  34. 34.7/8 + 1/11 =
  35. 35.1/4 + 2/3 =
  36. 36.2/6 − 1/6 =
  37. 37.5/9 − 1/4 =
  38. 38.3/8 + 1/2 =
  39. 39.8/10 − 2/4 =
  40. 40.2/6 + 1/5 =

Answer key

  1. 1/6
  2. 13/12
  3. 67/132
  4. 25/42
  5. 3/4
  6. 13/10
  7. 19/15
  8. 2/3
  9. 37/40
  10. 5/22
  11. 73/72
  12. 78/55
  13. 1/4
  14. 29/21
  15. 24/55
  16. 2/3
  17. 9/10
  18. 17/15
  19. 8/21
  20. 17/15
  21. 6/5
  22. 27/55
  23. 13/15
  24. 1/20
  25. 1/5
  26. 67/66
  27. 5/6
  28. 1/40
  29. 8/7
  30. 3/77
  31. 44/45
  32. 11/40
  33. 5/6
  34. 85/88
  35. 11/12
  36. 1/6
  37. 11/36
  38. 7/8
  39. 3/10
  40. 8/15

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