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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 578 · 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 + 4/12 =
  2. 2.1/6 + 1/2 =
  3. 3.1/3 + 3/8 =
  4. 4.4/5 − 4/6 =
  5. 5.1/2 + 1/6 =
  6. 6.1/2 + 4/6 =
  7. 7.1/2 + 3/5 =
  8. 8.3/10 − 1/9 =
  9. 9.5/6 − 2/7 =
  10. 10.1/5 + 1/2 =
  11. 11.1/11 + 1/9 =
  12. 12.4/11 + 4/8 =
  13. 13.4/5 − 6/8 =
  14. 14.3/11 + 3/7 =
  15. 15.11/12 − 4/11 =
  16. 16.1/5 + 3/4 =
  17. 17.1/2 + 1/2 =
  18. 18.5/6 − 6/10 =
  19. 19.10/12 − 6/8 =
  20. 20.5/6 + 1/3 =
  21. 21.3/6 + 8/11 =
  22. 22.5/6 − 1/8 =
  23. 23.6/11 + 1/3 =
  24. 24.1/3 − 1/4 =
  25. 25.8/11 + 1/12 =
  26. 26.4/8 + 2/5 =
  27. 27.1/3 + 2/7 =
  28. 28.4/6 + 4/9 =
  29. 29.3/10 + 5/8 =
  30. 30.4/9 + 3/4 =
  31. 31.8/9 + 3/12 =
  32. 32.3/8 − 1/4 =
  33. 33.3/7 + 8/11 =
  34. 34.9/10 − 1/2 =
  35. 35.1/3 + 8/9 =
  36. 36.2/8 + 2/3 =
  37. 37.1/4 + 2/10 =
  38. 38.5/10 − 1/4 =
  39. 39.2/6 + 3/4 =
  40. 40.1/10 + 2/4 =

Answer key

  1. 5/6
  2. 2/3
  3. 17/24
  4. 2/15
  5. 2/3
  6. 7/6
  7. 11/10
  8. 17/90
  9. 23/42
  10. 7/10
  11. 20/99
  12. 19/22
  13. 1/20
  14. 54/77
  15. 73/132
  16. 19/20
  17. 1
  18. 7/30
  19. 1/12
  20. 7/6
  21. 27/22
  22. 17/24
  23. 29/33
  24. 1/12
  25. 107/132
  26. 9/10
  27. 13/21
  28. 10/9
  29. 37/40
  30. 43/36
  31. 41/36
  32. 1/8
  33. 89/77
  34. 2/5
  35. 11/9
  36. 11/12
  37. 9/20
  38. 1/4
  39. 13/12
  40. 3/5

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