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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 539 · 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. 1.1/4 − 1/5 =
  2. 2.5/9 − 3/6 =
  3. 3.4/6 + 3/4 =
  4. 4.3/11 + 1/6 =
  5. 5.1/2 + 2/10 =
  6. 6.9/11 + 1/7 =
  7. 7.3/5 + 1/3 =
  8. 8.6/11 + 1/2 =
  9. 9.3/5 − 2/4 =
  10. 10.2/8 − 1/7 =
  11. 11.7/8 − 6/10 =
  12. 12.1/3 − 1/5 =
  13. 13.8/9 + 6/12 =
  14. 14.1/11 + 7/8 =
  15. 15.5/7 − 2/5 =
  16. 16.3/11 + 1/4 =
  17. 17.1/4 − 1/6 =
  18. 18.4/5 + 3/7 =
  19. 19.1/2 + 9/11 =
  20. 20.7/9 + 1/4 =
  21. 21.2/3 − 4/8 =
  22. 22.2/3 + 4/6 =
  23. 23.6/12 − 5/11 =
  24. 24.7/10 + 2/4 =
  25. 25.3/10 + 5/10 =
  26. 26.6/12 + 3/4 =
  27. 27.7/11 − 2/6 =
  28. 28.6/10 + 2/4 =
  29. 29.5/7 + 9/10 =
  30. 30.2/3 − 1/5 =
  31. 31.3/4 + 1/5 =
  32. 32.5/8 + 3/7 =
  33. 33.10/12 − 6/8 =
  34. 34.8/11 − 1/2 =
  35. 35.2/3 − 1/9 =
  36. 36.1/3 + 2/10 =
  37. 37.4/8 + 2/9 =
  38. 38.1/10 + 2/5 =
  39. 39.2/3 − 1/2 =
  40. 40.7/11 + 2/12 =

Answer key

  1. 1/20
  2. 1/18
  3. 17/12
  4. 29/66
  5. 7/10
  6. 74/77
  7. 14/15
  8. 23/22
  9. 1/10
  10. 3/28
  11. 11/40
  12. 2/15
  13. 25/18
  14. 85/88
  15. 11/35
  16. 23/44
  17. 1/12
  18. 43/35
  19. 29/22
  20. 37/36
  21. 1/6
  22. 4/3
  23. 1/22
  24. 6/5
  25. 4/5
  26. 5/4
  27. 10/33
  28. 11/10
  29. 113/70
  30. 7/15
  31. 19/20
  32. 59/56
  33. 1/12
  34. 5/22
  35. 5/9
  36. 8/15
  37. 13/18
  38. 1/2
  39. 1/6
  40. 53/66

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