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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 33 · 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. 1.3/9 + 4/7 =
  2. 2.7/10 + 1/2 =
  3. 3.4/5 + 1/5 =
  4. 4.5/10 + 1/2 =
  5. 5.1/2 + 1/2 =
  6. 6.7/8 − 2/6 =
  7. 7.4/12 + 1/3 =
  8. 8.7/9 − 1/8 =
  9. 9.2/5 + 2/4 =
  10. 10.2/3 + 1/11 =
  11. 11.1/11 + 1/3 =
  12. 12.3/8 + 2/9 =
  13. 13.2/4 − 2/10 =
  14. 14.6/7 + 4/7 =
  15. 15.3/6 + 2/4 =
  16. 16.2/4 − 2/11 =
  17. 17.5/6 + 1/7 =
  18. 18.2/3 + 3/8 =
  19. 19.4/6 + 6/7 =
  20. 20.1/3 + 8/9 =
  21. 21.3/9 − 1/4 =
  22. 22.5/8 + 7/10 =
  23. 23.6/7 + 11/12 =
  24. 24.5/9 + 4/5 =
  25. 25.3/5 + 7/10 =
  26. 26.8/12 − 1/2 =
  27. 27.3/12 + 3/6 =
  28. 28.1/6 + 1/3 =
  29. 29.1/3 + 1/10 =
  30. 30.7/12 − 2/11 =
  31. 31.1/9 + 1/11 =
  32. 32.8/11 + 2/3 =
  33. 33.2/10 + 1/4 =
  34. 34.3/4 + 6/7 =
  35. 35.1/3 − 1/5 =
  36. 36.5/12 + 7/8 =
  37. 37.3/4 + 7/10 =
  38. 38.6/8 + 5/7 =
  39. 39.4/12 + 1/5 =
  40. 40.7/9 + 10/11 =

Answer key

  1. 19/21
  2. 6/5
  3. 1
  4. 1
  5. 1
  6. 13/24
  7. 2/3
  8. 47/72
  9. 9/10
  10. 25/33
  11. 14/33
  12. 43/72
  13. 3/10
  14. 10/7
  15. 1
  16. 7/22
  17. 41/42
  18. 25/24
  19. 32/21
  20. 11/9
  21. 1/12
  22. 53/40
  23. 149/84
  24. 61/45
  25. 13/10
  26. 1/6
  27. 3/4
  28. 1/2
  29. 13/30
  30. 53/132
  31. 20/99
  32. 46/33
  33. 9/20
  34. 45/28
  35. 2/15
  36. 31/24
  37. 29/20
  38. 41/28
  39. 8/15
  40. 167/99

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