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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 747 · 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 + 2/3 =
  2. 2.1/7 + 4/6 =
  3. 3.1/2 + 1/8 =
  4. 4.9/12 + 6/11 =
  5. 5.1/3 + 1/3 =
  6. 6.2/4 + 1/2 =
  7. 7.1/4 + 5/10 =
  8. 8.2/4 − 1/3 =
  9. 9.6/12 + 8/10 =
  10. 10.2/3 + 5/7 =
  11. 11.4/12 − 1/4 =
  12. 12.1/2 − 1/6 =
  13. 13.6/8 − 2/9 =
  14. 14.1/2 + 4/9 =
  15. 15.6/7 + 7/11 =
  16. 16.3/4 + 2/8 =
  17. 17.2/5 + 4/10 =
  18. 18.6/11 + 3/4 =
  19. 19.8/11 + 1/12 =
  20. 20.2/7 + 5/9 =
  21. 21.3/10 + 2/5 =
  22. 22.1/4 + 7/10 =
  23. 23.4/5 + 1/3 =
  24. 24.8/10 + 3/4 =
  25. 25.3/9 + 1/2 =
  26. 26.2/3 − 1/6 =
  27. 27.1/7 + 3/10 =
  28. 28.7/10 + 1/2 =
  29. 29.3/4 + 3/4 =
  30. 30.3/4 + 1/5 =
  31. 31.1/3 + 3/4 =
  32. 32.5/8 − 6/10 =
  33. 33.5/12 + 1/6 =
  34. 34.2/4 + 1/2 =
  35. 35.8/11 + 1/12 =
  36. 36.5/6 − 5/12 =
  37. 37.4/5 + 2/3 =
  38. 38.2/7 + 3/12 =
  39. 39.3/9 + 2/5 =
  40. 40.2/8 + 1/2 =

Answer key

  1. 7/6
  2. 17/21
  3. 5/8
  4. 57/44
  5. 2/3
  6. 1
  7. 3/4
  8. 1/6
  9. 13/10
  10. 29/21
  11. 1/12
  12. 1/3
  13. 19/36
  14. 17/18
  15. 115/77
  16. 1
  17. 4/5
  18. 57/44
  19. 107/132
  20. 53/63
  21. 7/10
  22. 19/20
  23. 17/15
  24. 31/20
  25. 5/6
  26. 1/2
  27. 31/70
  28. 6/5
  29. 3/2
  30. 19/20
  31. 13/12
  32. 1/40
  33. 7/12
  34. 1
  35. 107/132
  36. 5/12
  37. 22/15
  38. 15/28
  39. 11/15
  40. 3/4

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