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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 617 · 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. 1.2/4 − 1/6 =
  2. 2.1/6 + 2/11 =
  3. 3.4/6 + 1/11 =
  4. 4.2/3 + 2/9 =
  5. 5.2/3 − 4/12 =
  6. 6.2/3 − 3/5 =
  7. 7.2/3 − 5/10 =
  8. 8.2/5 + 8/12 =
  9. 9.2/8 − 1/6 =
  10. 10.7/11 − 4/12 =
  11. 11.1/2 + 9/11 =
  12. 12.2/9 + 1/2 =
  13. 13.1/2 − 2/12 =
  14. 14.4/6 + 10/11 =
  15. 15.10/12 + 1/4 =
  16. 16.2/8 − 2/11 =
  17. 17.9/11 + 5/8 =
  18. 18.2/11 + 4/8 =
  19. 19.1/3 + 3/4 =
  20. 20.2/6 − 1/5 =
  21. 21.1/2 − 1/3 =
  22. 22.1/9 + 3/4 =
  23. 23.1/2 − 2/7 =
  24. 24.1/4 + 6/11 =
  25. 25.5/8 + 1/3 =
  26. 26.5/8 + 3/5 =
  27. 27.2/3 − 4/8 =
  28. 28.2/5 + 3/4 =
  29. 29.6/9 − 1/4 =
  30. 30.10/12 + 1/12 =
  31. 31.3/4 + 1/4 =
  32. 32.10/12 − 1/2 =
  33. 33.5/8 + 6/11 =
  34. 34.5/6 + 2/3 =
  35. 35.1/10 + 1/8 =
  36. 36.7/9 − 1/3 =
  37. 37.7/12 − 1/5 =
  38. 38.1/2 − 1/9 =
  39. 39.1/7 + 1/2 =
  40. 40.1/2 + 4/9 =

Answer key

  1. 1/3
  2. 23/66
  3. 25/33
  4. 8/9
  5. 1/3
  6. 1/15
  7. 1/6
  8. 16/15
  9. 1/12
  10. 10/33
  11. 29/22
  12. 13/18
  13. 1/3
  14. 52/33
  15. 13/12
  16. 3/44
  17. 127/88
  18. 15/22
  19. 13/12
  20. 2/15
  21. 1/6
  22. 31/36
  23. 3/14
  24. 35/44
  25. 23/24
  26. 49/40
  27. 1/6
  28. 23/20
  29. 5/12
  30. 11/12
  31. 1
  32. 1/3
  33. 103/88
  34. 3/2
  35. 9/40
  36. 4/9
  37. 23/60
  38. 7/18
  39. 9/14
  40. 17/18

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