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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 900 · 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. 1.1/4 + 3/4 =
  2. 2.1/3 + 8/10 =
  3. 3.4/8 + 1/2 =
  4. 4.5/9 + 1/11 =
  5. 5.1/2 + 3/6 =
  6. 6.2/12 + 1/7 =
  7. 7.5/10 + 2/3 =
  8. 8.1/7 + 1/3 =
  9. 9.2/11 + 3/6 =
  10. 10.2/4 + 2/11 =
  11. 11.2/3 − 1/2 =
  12. 12.2/8 + 3/9 =
  13. 13.3/12 + 1/2 =
  14. 14.7/8 + 1/2 =
  15. 15.1/2 − 2/10 =
  16. 16.2/11 + 4/5 =
  17. 17.2/3 + 1/4 =
  18. 18.5/6 − 3/4 =
  19. 19.5/9 − 1/9 =
  20. 20.1/2 − 1/3 =
  21. 21.1/9 + 3/6 =
  22. 22.3/6 + 1/4 =
  23. 23.2/5 + 3/9 =
  24. 24.5/10 + 7/8 =
  25. 25.2/5 + 3/5 =
  26. 26.4/7 + 1/2 =
  27. 27.3/4 + 3/5 =
  28. 28.5/6 − 9/11 =
  29. 29.6/7 + 6/8 =
  30. 30.2/3 − 1/5 =
  31. 31.1/4 + 5/8 =
  32. 32.2/4 + 6/8 =
  33. 33.1/12 + 2/8 =
  34. 34.1/3 − 2/7 =
  35. 35.6/8 − 4/12 =
  36. 36.4/9 − 1/9 =
  37. 37.1/11 + 5/11 =
  38. 38.6/9 − 1/12 =
  39. 39.7/11 − 1/2 =
  40. 40.1/10 + 5/7 =

Answer key

  1. 1
  2. 17/15
  3. 1
  4. 64/99
  5. 1
  6. 13/42
  7. 7/6
  8. 10/21
  9. 15/22
  10. 15/22
  11. 1/6
  12. 7/12
  13. 3/4
  14. 11/8
  15. 3/10
  16. 54/55
  17. 11/12
  18. 1/12
  19. 4/9
  20. 1/6
  21. 11/18
  22. 3/4
  23. 11/15
  24. 11/8
  25. 1
  26. 15/14
  27. 27/20
  28. 1/66
  29. 45/28
  30. 7/15
  31. 7/8
  32. 5/4
  33. 1/3
  34. 1/21
  35. 5/12
  36. 1/3
  37. 6/11
  38. 7/12
  39. 3/22
  40. 57/70

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