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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 8 · 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. 1.1/2 − 4/9 =
  2. 2.1/2 + 1/11 =
  3. 3.3/5 + 2/6 =
  4. 4.5/12 − 3/8 =
  5. 5.1/2 − 3/10 =
  6. 6.3/8 − 1/10 =
  7. 7.3/7 + 2/9 =
  8. 8.1/2 − 1/5 =
  9. 9.9/10 + 3/4 =
  10. 10.7/10 − 2/6 =
  11. 11.6/11 + 5/6 =
  12. 12.7/8 − 6/10 =
  13. 13.2/4 − 1/3 =
  14. 14.4/11 + 1/6 =
  15. 15.10/12 − 8/10 =
  16. 16.6/11 − 4/10 =
  17. 17.1/2 + 7/12 =
  18. 18.1/2 − 2/9 =
  19. 19.2/7 − 2/10 =
  20. 20.6/7 + 6/10 =
  21. 21.2/3 − 3/5 =
  22. 22.2/12 + 1/4 =
  23. 23.7/11 − 4/11 =
  24. 24.2/8 + 1/10 =
  25. 25.2/11 + 3/5 =
  26. 26.9/10 + 1/2 =
  27. 27.4/7 + 5/6 =
  28. 28.3/5 − 1/8 =
  29. 29.1/2 + 1/2 =
  30. 30.2/3 + 1/2 =
  31. 31.3/4 + 1/2 =
  32. 32.3/6 + 3/5 =
  33. 33.2/12 − 1/10 =
  34. 34.3/4 − 7/10 =
  35. 35.1/10 + 4/9 =
  36. 36.3/5 − 4/10 =
  37. 37.5/9 + 1/2 =
  38. 38.8/12 − 1/4 =
  39. 39.1/2 − 2/11 =
  40. 40.3/10 − 1/12 =

Answer key

  1. 1/18
  2. 13/22
  3. 14/15
  4. 1/24
  5. 1/5
  6. 11/40
  7. 41/63
  8. 3/10
  9. 33/20
  10. 11/30
  11. 91/66
  12. 11/40
  13. 1/6
  14. 35/66
  15. 1/30
  16. 8/55
  17. 13/12
  18. 5/18
  19. 3/35
  20. 51/35
  21. 1/15
  22. 5/12
  23. 3/11
  24. 7/20
  25. 43/55
  26. 7/5
  27. 59/42
  28. 19/40
  29. 1
  30. 7/6
  31. 5/4
  32. 11/10
  33. 1/15
  34. 1/20
  35. 49/90
  36. 1/5
  37. 19/18
  38. 5/12
  39. 7/22
  40. 13/60

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