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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 77 · 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. 1.1/12 + 7/9 =
  2. 2.6/8 + 6/9 =
  3. 3.1/2 + 2/3 =
  4. 4.3/10 + 3/10 =
  5. 5.4/8 − 1/3 =
  6. 6.7/12 + 6/11 =
  7. 7.1/2 + 1/11 =
  8. 8.2/7 + 3/12 =
  9. 9.3/5 − 2/6 =
  10. 10.4/5 − 1/9 =
  11. 11.1/2 + 2/6 =
  12. 12.4/10 − 1/3 =
  13. 13.3/4 + 5/10 =
  14. 14.6/11 + 1/3 =
  15. 15.6/9 − 1/8 =
  16. 16.1/3 − 1/4 =
  17. 17.3/9 + 3/11 =
  18. 18.3/7 − 3/9 =
  19. 19.3/7 + 4/5 =
  20. 20.3/8 − 1/4 =
  21. 21.8/9 − 5/12 =
  22. 22.5/7 + 1/3 =
  23. 23.8/9 − 2/3 =
  24. 24.1/6 + 5/8 =
  25. 25.4/11 − 1/3 =
  26. 26.3/6 − 3/11 =
  27. 27.2/3 + 3/8 =
  28. 28.6/10 − 1/4 =
  29. 29.5/6 + 1/2 =
  30. 30.3/5 + 6/9 =
  31. 31.1/7 + 1/8 =
  32. 32.5/6 + 7/12 =
  33. 33.1/12 + 3/5 =
  34. 34.6/7 + 2/11 =
  35. 35.1/8 + 6/8 =
  36. 36.1/2 + 1/2 =
  37. 37.8/11 + 1/2 =
  38. 38.1/8 + 9/12 =
  39. 39.2/3 − 1/2 =
  40. 40.2/3 + 1/12 =

Answer key

  1. 31/36
  2. 17/12
  3. 7/6
  4. 3/5
  5. 1/6
  6. 149/132
  7. 13/22
  8. 15/28
  9. 4/15
  10. 31/45
  11. 5/6
  12. 1/15
  13. 5/4
  14. 29/33
  15. 13/24
  16. 1/12
  17. 20/33
  18. 2/21
  19. 43/35
  20. 1/8
  21. 17/36
  22. 22/21
  23. 2/9
  24. 19/24
  25. 1/33
  26. 5/22
  27. 25/24
  28. 7/20
  29. 4/3
  30. 19/15
  31. 15/56
  32. 17/12
  33. 41/60
  34. 80/77
  35. 7/8
  36. 1
  37. 27/22
  38. 7/8
  39. 1/6
  40. 3/4

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