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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 881 · 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. 1.1/2 − 1/3 =
  2. 2.2/8 + 2/7 =
  3. 3.1/6 + 3/4 =
  4. 4.2/3 + 1/3 =
  5. 5.2/11 + 8/12 =
  6. 6.4/7 + 1/2 =
  7. 7.2/11 + 2/5 =
  8. 8.1/2 + 1/2 =
  9. 9.5/12 + 7/11 =
  10. 10.2/3 + 1/2 =
  11. 11.1/9 + 2/4 =
  12. 12.4/11 + 3/6 =
  13. 13.2/4 + 5/6 =
  14. 14.3/4 − 5/8 =
  15. 15.1/2 + 1/2 =
  16. 16.5/7 + 1/10 =
  17. 17.1/4 + 7/8 =
  18. 18.2/5 − 1/4 =
  19. 19.6/10 − 1/2 =
  20. 20.6/12 + 3/8 =
  21. 21.2/9 + 2/3 =
  22. 22.1/2 + 3/11 =
  23. 23.1/11 + 10/11 =
  24. 24.5/12 − 2/12 =
  25. 25.8/9 − 1/9 =
  26. 26.1/2 + 4/12 =
  27. 27.1/3 + 6/8 =
  28. 28.3/5 − 2/4 =
  29. 29.3/5 + 1/2 =
  30. 30.9/11 − 5/9 =
  31. 31.7/8 + 1/2 =
  32. 32.2/3 + 1/6 =
  33. 33.2/8 + 2/3 =
  34. 34.10/12 − 6/8 =
  35. 35.1/3 + 8/11 =
  36. 36.2/10 + 2/4 =
  37. 37.2/11 + 7/10 =
  38. 38.1/2 + 1/2 =
  39. 39.1/2 + 1/6 =
  40. 40.2/7 + 1/2 =

Answer key

  1. 1/6
  2. 15/28
  3. 11/12
  4. 1
  5. 28/33
  6. 15/14
  7. 32/55
  8. 1
  9. 139/132
  10. 7/6
  11. 11/18
  12. 19/22
  13. 4/3
  14. 1/8
  15. 1
  16. 57/70
  17. 9/8
  18. 3/20
  19. 1/10
  20. 7/8
  21. 8/9
  22. 17/22
  23. 1
  24. 1/4
  25. 7/9
  26. 5/6
  27. 13/12
  28. 1/10
  29. 11/10
  30. 26/99
  31. 11/8
  32. 5/6
  33. 11/12
  34. 1/12
  35. 35/33
  36. 7/10
  37. 97/110
  38. 1
  39. 2/3
  40. 11/14

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