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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 885 · 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. 1.1/3 − 1/4 =
  2. 2.9/10 − 5/9 =
  3. 3.5/8 + 3/4 =
  4. 4.3/6 − 1/11 =
  5. 5.6/9 − 3/5 =
  6. 6.6/10 + 2/3 =
  7. 7.1/6 + 1/2 =
  8. 8.3/12 + 2/8 =
  9. 9.1/2 − 5/11 =
  10. 10.2/12 + 3/9 =
  11. 11.1/2 + 1/2 =
  12. 12.2/3 + 1/4 =
  13. 13.2/4 + 4/9 =
  14. 14.2/7 + 2/7 =
  15. 15.7/12 + 4/5 =
  16. 16.1/8 + 1/3 =
  17. 17.2/3 − 2/9 =
  18. 18.5/12 − 4/11 =
  19. 19.8/12 − 1/2 =
  20. 20.6/7 + 2/3 =
  21. 21.1/2 + 1/3 =
  22. 22.5/11 + 3/5 =
  23. 23.9/10 + 6/8 =
  24. 24.10/12 + 5/6 =
  25. 25.2/5 + 7/9 =
  26. 26.1/2 − 4/10 =
  27. 27.1/2 + 1/3 =
  28. 28.5/6 + 1/2 =
  29. 29.4/5 + 3/10 =
  30. 30.2/3 + 9/12 =
  31. 31.9/12 − 5/8 =
  32. 32.1/4 + 1/9 =
  33. 33.1/7 + 4/8 =
  34. 34.6/9 + 2/3 =
  35. 35.6/7 + 2/12 =
  36. 36.6/10 + 2/8 =
  37. 37.9/12 + 6/9 =
  38. 38.1/2 + 2/6 =
  39. 39.1/2 + 2/4 =
  40. 40.5/6 + 2/6 =

Answer key

  1. 1/12
  2. 31/90
  3. 11/8
  4. 9/22
  5. 1/15
  6. 19/15
  7. 2/3
  8. 1/2
  9. 1/22
  10. 1/2
  11. 1
  12. 11/12
  13. 17/18
  14. 4/7
  15. 83/60
  16. 11/24
  17. 4/9
  18. 7/132
  19. 1/6
  20. 32/21
  21. 5/6
  22. 58/55
  23. 33/20
  24. 5/3
  25. 53/45
  26. 1/10
  27. 5/6
  28. 4/3
  29. 11/10
  30. 17/12
  31. 1/8
  32. 13/36
  33. 9/14
  34. 4/3
  35. 43/42
  36. 17/20
  37. 17/12
  38. 5/6
  39. 1
  40. 7/6

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