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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 87 · 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. 1.1/9 + 1/9 =
  2. 2.9/10 + 1/2 =
  3. 3.2/11 + 5/6 =
  4. 4.5/6 + 1/12 =
  5. 5.6/7 − 2/4 =
  6. 6.10/11 − 5/10 =
  7. 7.3/8 + 1/6 =
  8. 8.2/7 + 3/7 =
  9. 9.11/12 + 1/2 =
  10. 10.1/4 + 2/3 =
  11. 11.9/12 + 6/12 =
  12. 12.1/3 − 2/10 =
  13. 13.9/12 + 1/9 =
  14. 14.3/11 + 4/11 =
  15. 15.1/4 + 7/10 =
  16. 16.5/12 + 10/11 =
  17. 17.3/6 + 2/8 =
  18. 18.5/6 − 1/2 =
  19. 19.1/8 + 2/7 =
  20. 20.3/4 − 2/11 =
  21. 21.2/5 + 2/5 =
  22. 22.4/5 − 1/2 =
  23. 23.1/2 + 2/3 =
  24. 24.5/11 + 3/5 =
  25. 25.1/8 + 6/8 =
  26. 26.5/10 + 3/6 =
  27. 27.6/8 − 1/11 =
  28. 28.9/11 + 4/11 =
  29. 29.2/3 + 6/11 =
  30. 30.4/6 − 3/11 =
  31. 31.4/6 + 9/12 =
  32. 32.2/5 − 3/8 =
  33. 33.1/2 + 5/6 =
  34. 34.1/2 + 5/11 =
  35. 35.7/10 + 2/5 =
  36. 36.1/9 + 1/9 =
  37. 37.8/10 − 2/3 =
  38. 38.3/12 + 2/8 =
  39. 39.2/4 − 1/8 =
  40. 40.1/2 + 3/4 =

Answer key

  1. 2/9
  2. 7/5
  3. 67/66
  4. 11/12
  5. 5/14
  6. 9/22
  7. 13/24
  8. 5/7
  9. 17/12
  10. 11/12
  11. 5/4
  12. 2/15
  13. 31/36
  14. 7/11
  15. 19/20
  16. 175/132
  17. 3/4
  18. 1/3
  19. 23/56
  20. 25/44
  21. 4/5
  22. 3/10
  23. 7/6
  24. 58/55
  25. 7/8
  26. 1
  27. 29/44
  28. 13/11
  29. 40/33
  30. 13/33
  31. 17/12
  32. 1/40
  33. 4/3
  34. 21/22
  35. 11/10
  36. 2/9
  37. 2/15
  38. 1/2
  39. 3/8
  40. 5/4

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