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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 811 · 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. 1.2/3 − 3/11 =
  2. 2.1/12 + 2/9 =
  3. 3.6/10 + 5/9 =
  4. 4.1/2 + 1/2 =
  5. 5.4/6 + 5/8 =
  6. 6.2/3 + 2/5 =
  7. 7.1/4 + 3/6 =
  8. 8.5/7 + 1/4 =
  9. 9.2/6 + 5/6 =
  10. 10.9/10 − 5/11 =
  11. 11.2/4 + 1/7 =
  12. 12.4/10 − 4/12 =
  13. 13.6/8 + 3/4 =
  14. 14.1/3 − 2/7 =
  15. 15.2/4 + 2/3 =
  16. 16.5/9 − 1/2 =
  17. 17.2/5 + 2/3 =
  18. 18.6/9 + 3/9 =
  19. 19.2/8 + 3/5 =
  20. 20.7/10 + 1/11 =
  21. 21.5/7 − 3/12 =
  22. 22.3/4 + 2/7 =
  23. 23.3/4 − 1/7 =
  24. 24.1/7 − 1/11 =
  25. 25.2/3 − 2/6 =
  26. 26.1/6 + 4/11 =
  27. 27.3/12 + 9/10 =
  28. 28.9/12 − 1/3 =
  29. 29.3/4 − 1/2 =
  30. 30.4/7 − 2/7 =
  31. 31.3/7 − 1/3 =
  32. 32.2/7 + 1/7 =
  33. 33.3/7 + 1/10 =
  34. 34.1/5 + 4/11 =
  35. 35.3/4 + 5/11 =
  36. 36.3/7 + 5/8 =
  37. 37.1/3 − 1/10 =
  38. 38.1/3 − 1/10 =
  39. 39.5/8 − 2/6 =
  40. 40.2/3 − 1/4 =

Answer key

  1. 13/33
  2. 11/36
  3. 52/45
  4. 1
  5. 31/24
  6. 16/15
  7. 3/4
  8. 27/28
  9. 7/6
  10. 49/110
  11. 9/14
  12. 1/15
  13. 3/2
  14. 1/21
  15. 7/6
  16. 1/18
  17. 16/15
  18. 1
  19. 17/20
  20. 87/110
  21. 13/28
  22. 29/28
  23. 17/28
  24. 4/77
  25. 1/3
  26. 35/66
  27. 23/20
  28. 5/12
  29. 1/4
  30. 2/7
  31. 2/21
  32. 3/7
  33. 37/70
  34. 31/55
  35. 53/44
  36. 59/56
  37. 7/30
  38. 7/30
  39. 7/24
  40. 5/12

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