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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 791 · 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 + 1/4 =
  2. 2.8/12 − 1/2 =
  3. 3.6/7 − 4/6 =
  4. 4.1/2 − 1/5 =
  5. 5.8/10 + 7/8 =
  6. 6.6/12 + 8/11 =
  7. 7.6/10 + 10/11 =
  8. 8.2/6 + 4/9 =
  9. 9.1/2 + 5/9 =
  10. 10.1/4 + 7/9 =
  11. 11.4/8 + 7/8 =
  12. 12.3/4 − 1/4 =
  13. 13.8/11 + 3/6 =
  14. 14.1/3 − 1/7 =
  15. 15.11/12 + 5/8 =
  16. 16.8/9 − 1/3 =
  17. 17.5/11 + 7/11 =
  18. 18.1/3 + 5/6 =
  19. 19.5/12 − 1/3 =
  20. 20.5/12 + 2/4 =
  21. 21.5/9 − 2/8 =
  22. 22.1/4 + 2/9 =
  23. 23.5/6 + 3/4 =
  24. 24.1/2 + 2/4 =
  25. 25.9/12 + 2/7 =
  26. 26.9/10 + 7/9 =
  27. 27.1/4 − 1/8 =
  28. 28.2/11 + 1/2 =
  29. 29.2/6 + 2/9 =
  30. 30.2/5 − 3/8 =
  31. 31.10/12 − 2/9 =
  32. 32.1/6 + 2/10 =
  33. 33.2/3 + 1/2 =
  34. 34.1/5 − 1/9 =
  35. 35.3/7 + 1/4 =
  36. 36.1/2 − 2/6 =
  37. 37.2/3 − 5/8 =
  38. 38.7/9 + 6/7 =
  39. 39.2/3 + 4/5 =
  40. 40.2/6 + 3/4 =

Answer key

  1. 1/2
  2. 1/6
  3. 4/21
  4. 3/10
  5. 67/40
  6. 27/22
  7. 83/55
  8. 7/9
  9. 19/18
  10. 37/36
  11. 11/8
  12. 1/2
  13. 27/22
  14. 4/21
  15. 37/24
  16. 5/9
  17. 12/11
  18. 7/6
  19. 1/12
  20. 11/12
  21. 11/36
  22. 17/36
  23. 19/12
  24. 1
  25. 29/28
  26. 151/90
  27. 1/8
  28. 15/22
  29. 5/9
  30. 1/40
  31. 11/18
  32. 11/30
  33. 7/6
  34. 4/45
  35. 19/28
  36. 1/6
  37. 1/24
  38. 103/63
  39. 22/15
  40. 13/12

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