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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 25 · 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. 1.2/8 + 2/3 =
  2. 2.3/6 + 2/10 =
  3. 3.1/2 − 2/6 =
  4. 4.1/2 − 4/12 =
  5. 5.1/3 + 1/3 =
  6. 6.2/5 + 1/3 =
  7. 7.2/3 − 2/6 =
  8. 8.1/2 − 1/7 =
  9. 9.4/5 + 1/4 =
  10. 10.4/7 + 1/2 =
  11. 11.1/3 + 7/10 =
  12. 12.6/10 + 1/4 =
  13. 13.2/11 + 2/11 =
  14. 14.1/3 + 2/6 =
  15. 15.4/11 + 1/8 =
  16. 16.5/10 + 6/12 =
  17. 17.11/12 + 1/2 =
  18. 18.6/7 − 1/6 =
  19. 19.4/7 + 3/4 =
  20. 20.3/4 − 1/2 =
  21. 21.3/7 + 6/7 =
  22. 22.1/3 + 3/6 =
  23. 23.6/8 + 1/5 =
  24. 24.8/12 + 1/7 =
  25. 25.7/10 − 6/12 =
  26. 26.1/5 + 2/5 =
  27. 27.3/9 − 1/4 =
  28. 28.6/12 + 2/5 =
  29. 29.5/6 + 4/7 =
  30. 30.3/9 + 3/9 =
  31. 31.1/2 − 1/3 =
  32. 32.10/11 − 1/3 =
  33. 33.3/6 + 1/2 =
  34. 34.5/9 + 4/11 =
  35. 35.3/11 + 1/2 =
  36. 36.5/8 + 3/4 =
  37. 37.1/2 + 6/12 =
  38. 38.1/2 + 2/3 =
  39. 39.3/4 + 4/6 =
  40. 40.2/3 + 1/3 =

Answer key

  1. 11/12
  2. 7/10
  3. 1/6
  4. 1/6
  5. 2/3
  6. 11/15
  7. 1/3
  8. 5/14
  9. 21/20
  10. 15/14
  11. 31/30
  12. 17/20
  13. 4/11
  14. 2/3
  15. 43/88
  16. 1
  17. 17/12
  18. 29/42
  19. 37/28
  20. 1/4
  21. 9/7
  22. 5/6
  23. 19/20
  24. 17/21
  25. 1/5
  26. 3/5
  27. 1/12
  28. 9/10
  29. 59/42
  30. 2/3
  31. 1/6
  32. 19/33
  33. 1
  34. 91/99
  35. 17/22
  36. 11/8
  37. 1
  38. 7/6
  39. 17/12
  40. 1

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