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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 137 · 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. 1.6/10 − 1/4 =
  2. 2.2/3 + 2/11 =
  3. 3.6/7 − 3/12 =
  4. 4.3/9 + 7/8 =
  5. 5.1/2 + 3/11 =
  6. 6.2/5 − 1/5 =
  7. 7.6/10 + 5/6 =
  8. 8.7/10 − 4/7 =
  9. 9.2/12 + 8/10 =
  10. 10.3/7 − 1/3 =
  11. 11.7/11 + 6/9 =
  12. 12.2/4 + 3/8 =
  13. 13.2/4 + 3/4 =
  14. 14.1/4 + 4/6 =
  15. 15.5/8 − 4/9 =
  16. 16.6/9 − 3/6 =
  17. 17.9/10 − 2/5 =
  18. 18.9/10 − 1/2 =
  19. 19.2/4 + 2/4 =
  20. 20.1/11 + 3/12 =
  21. 21.10/11 + 2/7 =
  22. 22.1/2 + 11/12 =
  23. 23.1/3 + 2/6 =
  24. 24.1/4 + 1/8 =
  25. 25.3/4 + 2/7 =
  26. 26.6/8 − 1/3 =
  27. 27.1/2 − 3/7 =
  28. 28.2/4 + 1/5 =
  29. 29.3/10 + 3/5 =
  30. 30.4/9 − 2/8 =
  31. 31.6/10 + 1/3 =
  32. 32.1/3 + 1/3 =
  33. 33.3/4 + 3/8 =
  34. 34.1/5 + 1/2 =
  35. 35.1/3 + 2/4 =
  36. 36.1/4 + 5/10 =
  37. 37.9/10 + 1/2 =
  38. 38.4/5 + 7/8 =
  39. 39.5/7 − 4/6 =
  40. 40.2/8 + 2/8 =

Answer key

  1. 7/20
  2. 28/33
  3. 17/28
  4. 29/24
  5. 17/22
  6. 1/5
  7. 43/30
  8. 9/70
  9. 29/30
  10. 2/21
  11. 43/33
  12. 7/8
  13. 5/4
  14. 11/12
  15. 13/72
  16. 1/6
  17. 1/2
  18. 2/5
  19. 1
  20. 15/44
  21. 92/77
  22. 17/12
  23. 2/3
  24. 3/8
  25. 29/28
  26. 5/12
  27. 1/14
  28. 7/10
  29. 9/10
  30. 7/36
  31. 14/15
  32. 2/3
  33. 9/8
  34. 7/10
  35. 5/6
  36. 3/4
  37. 7/5
  38. 67/40
  39. 1/21
  40. 1/2

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