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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 9 · 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. 1.5/8 − 1/5 =
  2. 2.7/12 + 9/10 =
  3. 3.3/5 − 1/3 =
  4. 4.10/11 − 7/9 =
  5. 5.3/4 − 1/3 =
  6. 6.7/9 − 2/5 =
  7. 7.3/12 + 3/5 =
  8. 8.3/7 + 5/10 =
  9. 9.1/4 + 4/7 =
  10. 10.9/10 − 5/7 =
  11. 11.1/3 − 1/10 =
  12. 12.2/3 + 2/7 =
  13. 13.8/11 − 1/3 =
  14. 14.3/6 + 1/3 =
  15. 15.2/3 − 4/10 =
  16. 16.2/4 + 1/4 =
  17. 17.1/4 − 1/6 =
  18. 18.2/3 − 5/8 =
  19. 19.1/2 + 2/9 =
  20. 20.1/2 − 2/11 =
  21. 21.6/11 − 1/2 =
  22. 22.6/8 + 7/10 =
  23. 23.2/5 + 5/6 =
  24. 24.5/6 − 2/11 =
  25. 25.8/11 − 1/4 =
  26. 26.5/7 − 2/5 =
  27. 27.1/2 + 3/6 =
  28. 28.1/2 − 1/6 =
  29. 29.7/12 + 2/3 =
  30. 30.3/12 + 3/5 =
  31. 31.4/11 + 5/12 =
  32. 32.3/10 + 1/3 =
  33. 33.6/8 − 2/4 =
  34. 34.2/5 + 1/2 =
  35. 35.5/8 − 1/2 =
  36. 36.6/12 + 1/2 =
  37. 37.3/9 + 1/5 =
  38. 38.4/5 + 2/3 =
  39. 39.6/7 + 2/8 =
  40. 40.6/10 + 1/3 =

Answer key

  1. 17/40
  2. 89/60
  3. 4/15
  4. 13/99
  5. 5/12
  6. 17/45
  7. 17/20
  8. 13/14
  9. 23/28
  10. 13/70
  11. 7/30
  12. 20/21
  13. 13/33
  14. 5/6
  15. 4/15
  16. 3/4
  17. 1/12
  18. 1/24
  19. 13/18
  20. 7/22
  21. 1/22
  22. 29/20
  23. 37/30
  24. 43/66
  25. 21/44
  26. 11/35
  27. 1
  28. 1/3
  29. 5/4
  30. 17/20
  31. 103/132
  32. 19/30
  33. 1/4
  34. 9/10
  35. 1/8
  36. 1
  37. 8/15
  38. 22/15
  39. 31/28
  40. 14/15

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