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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 580 · 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. 1.3/5 − 1/2 =
  2. 2.1/2 + 1/5 =
  3. 3.2/3 + 7/11 =
  4. 4.6/8 + 2/9 =
  5. 5.3/8 − 1/4 =
  6. 6.2/3 + 7/8 =
  7. 7.1/3 + 1/8 =
  8. 8.10/12 − 5/9 =
  9. 9.3/4 + 1/6 =
  10. 10.1/10 + 6/11 =
  11. 11.1/3 + 8/12 =
  12. 12.4/5 − 2/3 =
  13. 13.1/2 + 2/12 =
  14. 14.5/7 − 6/9 =
  15. 15.1/2 + 6/10 =
  16. 16.6/7 − 3/11 =
  17. 17.3/9 + 6/9 =
  18. 18.1/2 + 1/12 =
  19. 19.2/6 + 1/4 =
  20. 20.1/7 + 7/10 =
  21. 21.4/12 + 2/3 =
  22. 22.3/10 − 2/8 =
  23. 23.2/3 − 4/8 =
  24. 24.7/9 − 2/3 =
  25. 25.11/12 − 1/2 =
  26. 26.1/3 + 3/7 =
  27. 27.7/10 + 4/9 =
  28. 28.1/8 + 2/6 =
  29. 29.1/2 + 1/9 =
  30. 30.2/3 − 1/5 =
  31. 31.1/2 + 1/2 =
  32. 32.7/12 + 3/11 =
  33. 33.1/3 + 2/7 =
  34. 34.2/11 + 4/8 =
  35. 35.8/10 + 2/5 =
  36. 36.1/2 + 2/8 =
  37. 37.1/3 + 3/9 =
  38. 38.1/4 + 1/3 =
  39. 39.7/8 − 1/2 =
  40. 40.5/7 + 1/3 =

Answer key

  1. 1/10
  2. 7/10
  3. 43/33
  4. 35/36
  5. 1/8
  6. 37/24
  7. 11/24
  8. 5/18
  9. 11/12
  10. 71/110
  11. 1
  12. 2/15
  13. 2/3
  14. 1/21
  15. 11/10
  16. 45/77
  17. 1
  18. 7/12
  19. 7/12
  20. 59/70
  21. 1
  22. 1/20
  23. 1/6
  24. 1/9
  25. 5/12
  26. 16/21
  27. 103/90
  28. 11/24
  29. 11/18
  30. 7/15
  31. 1
  32. 113/132
  33. 13/21
  34. 15/22
  35. 6/5
  36. 3/4
  37. 2/3
  38. 7/12
  39. 3/8
  40. 22/21

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