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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 484 · 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. 1.2/9 + 1/3 =
  2. 2.1/4 + 2/8 =
  3. 3.1/4 + 2/4 =
  4. 4.2/6 + 1/3 =
  5. 5.4/5 − 1/2 =
  6. 6.4/12 − 1/4 =
  7. 7.3/11 + 5/9 =
  8. 8.2/3 − 1/3 =
  9. 9.1/2 + 1/5 =
  10. 10.1/2 + 2/12 =
  11. 11.2/9 + 2/5 =
  12. 12.7/11 + 1/6 =
  13. 13.3/9 − 1/4 =
  14. 14.2/3 + 2/10 =
  15. 15.2/4 + 1/2 =
  16. 16.1/2 + 1/4 =
  17. 17.1/2 + 9/10 =
  18. 18.11/12 + 5/9 =
  19. 19.11/12 − 2/7 =
  20. 20.3/5 − 1/5 =
  21. 21.7/8 + 6/11 =
  22. 22.1/3 + 5/10 =
  23. 23.6/7 + 5/7 =
  24. 24.3/8 + 3/4 =
  25. 25.1/4 + 2/11 =
  26. 26.6/8 + 7/10 =
  27. 27.1/2 + 2/4 =
  28. 28.1/10 + 1/7 =
  29. 29.3/10 − 2/11 =
  30. 30.9/12 + 2/5 =
  31. 31.1/2 + 1/4 =
  32. 32.1/9 − 1/10 =
  33. 33.6/9 − 1/2 =
  34. 34.1/3 + 3/12 =
  35. 35.2/3 + 1/3 =
  36. 36.2/8 + 1/5 =
  37. 37.5/8 + 5/8 =
  38. 38.3/4 + 5/11 =
  39. 39.8/12 + 1/2 =
  40. 40.1/3 + 2/3 =

Answer key

  1. 5/9
  2. 1/2
  3. 3/4
  4. 2/3
  5. 3/10
  6. 1/12
  7. 82/99
  8. 1/3
  9. 7/10
  10. 2/3
  11. 28/45
  12. 53/66
  13. 1/12
  14. 13/15
  15. 1
  16. 3/4
  17. 7/5
  18. 53/36
  19. 53/84
  20. 2/5
  21. 125/88
  22. 5/6
  23. 11/7
  24. 9/8
  25. 19/44
  26. 29/20
  27. 1
  28. 17/70
  29. 13/110
  30. 23/20
  31. 3/4
  32. 1/90
  33. 1/6
  34. 7/12
  35. 1
  36. 9/20
  37. 5/4
  38. 53/44
  39. 7/6
  40. 1

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