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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 149 · 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. 1.1/3 − 2/10 =
  2. 2.1/4 − 1/12 =
  3. 3.2/3 + 4/7 =
  4. 4.3/4 − 2/11 =
  5. 5.1/2 + 4/10 =
  6. 6.5/8 + 5/9 =
  7. 7.5/11 − 1/10 =
  8. 8.3/4 + 1/5 =
  9. 9.1/2 + 6/9 =
  10. 10.6/9 − 1/12 =
  11. 11.2/6 + 1/5 =
  12. 12.1/2 − 1/3 =
  13. 13.1/12 + 6/7 =
  14. 14.1/3 − 3/11 =
  15. 15.2/9 + 5/12 =
  16. 16.1/5 + 1/2 =
  17. 17.5/6 + 4/7 =
  18. 18.3/6 + 2/3 =
  19. 19.2/6 + 1/8 =
  20. 20.2/9 + 8/10 =
  21. 21.2/4 + 1/2 =
  22. 22.1/3 + 1/11 =
  23. 23.1/10 + 2/5 =
  24. 24.3/8 + 1/4 =
  25. 25.3/4 − 1/5 =
  26. 26.2/7 + 1/10 =
  27. 27.1/2 − 2/9 =
  28. 28.1/5 + 3/4 =
  29. 29.7/8 − 2/8 =
  30. 30.1/6 + 4/8 =
  31. 31.1/9 + 4/10 =
  32. 32.4/11 + 6/7 =
  33. 33.5/12 + 6/8 =
  34. 34.2/8 + 2/3 =
  35. 35.1/5 + 3/5 =
  36. 36.4/5 + 2/3 =
  37. 37.9/11 + 4/6 =
  38. 38.2/4 + 1/2 =
  39. 39.7/9 + 1/12 =
  40. 40.4/5 − 2/6 =

Answer key

  1. 2/15
  2. 1/6
  3. 26/21
  4. 25/44
  5. 9/10
  6. 85/72
  7. 39/110
  8. 19/20
  9. 7/6
  10. 7/12
  11. 8/15
  12. 1/6
  13. 79/84
  14. 2/33
  15. 23/36
  16. 7/10
  17. 59/42
  18. 7/6
  19. 11/24
  20. 46/45
  21. 1
  22. 14/33
  23. 1/2
  24. 5/8
  25. 11/20
  26. 27/70
  27. 5/18
  28. 19/20
  29. 5/8
  30. 2/3
  31. 23/45
  32. 94/77
  33. 7/6
  34. 11/12
  35. 4/5
  36. 22/15
  37. 49/33
  38. 1
  39. 31/36
  40. 7/15

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