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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 341 · 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. 1.4/8 − 1/3 =
  2. 2.4/10 − 2/11 =
  3. 3.10/11 − 4/7 =
  4. 4.1/4 + 1/10 =
  5. 5.5/6 + 4/7 =
  6. 6.5/8 − 6/12 =
  7. 7.1/2 + 1/3 =
  8. 8.1/4 + 1/3 =
  9. 9.5/7 + 1/2 =
  10. 10.1/3 + 8/11 =
  11. 11.2/3 − 1/3 =
  12. 12.1/5 + 7/10 =
  13. 13.6/12 − 1/4 =
  14. 14.3/4 + 1/4 =
  15. 15.1/6 + 3/11 =
  16. 16.1/2 + 4/11 =
  17. 17.1/9 + 4/9 =
  18. 18.3/11 + 1/9 =
  19. 19.7/8 − 5/10 =
  20. 20.8/9 + 8/10 =
  21. 21.1/7 + 4/11 =
  22. 22.2/3 + 5/9 =
  23. 23.6/7 + 2/4 =
  24. 24.1/4 + 1/5 =
  25. 25.4/12 − 1/5 =
  26. 26.4/5 + 1/3 =
  27. 27.5/6 − 2/9 =
  28. 28.6/10 + 3/4 =
  29. 29.6/11 + 2/3 =
  30. 30.2/5 − 3/9 =
  31. 31.2/5 + 5/12 =
  32. 32.6/9 + 2/5 =
  33. 33.1/2 − 1/6 =
  34. 34.3/4 − 2/8 =
  35. 35.2/4 + 2/3 =
  36. 36.1/2 − 1/7 =
  37. 37.1/2 + 7/10 =
  38. 38.2/3 + 4/12 =
  39. 39.4/7 + 4/12 =
  40. 40.5/6 − 2/3 =

Answer key

  1. 1/6
  2. 12/55
  3. 26/77
  4. 7/20
  5. 59/42
  6. 1/8
  7. 5/6
  8. 7/12
  9. 17/14
  10. 35/33
  11. 1/3
  12. 9/10
  13. 1/4
  14. 1
  15. 29/66
  16. 19/22
  17. 5/9
  18. 38/99
  19. 3/8
  20. 76/45
  21. 39/77
  22. 11/9
  23. 19/14
  24. 9/20
  25. 2/15
  26. 17/15
  27. 11/18
  28. 27/20
  29. 40/33
  30. 1/15
  31. 49/60
  32. 16/15
  33. 1/3
  34. 1/2
  35. 7/6
  36. 5/14
  37. 6/5
  38. 1
  39. 19/21
  40. 1/6

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