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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 20 · 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. 1.7/8 − 1/9 =
  2. 2.3/5 + 2/4 =
  3. 3.6/11 + 5/6 =
  4. 4.6/8 + 1/11 =
  5. 5.5/12 + 3/4 =
  6. 6.5/11 − 1/6 =
  7. 7.3/7 + 2/4 =
  8. 8.1/5 + 1/5 =
  9. 9.3/6 − 5/11 =
  10. 10.11/12 − 1/3 =
  11. 11.1/9 + 1/3 =
  12. 12.1/3 + 9/10 =
  13. 13.3/10 + 9/10 =
  14. 14.3/4 + 10/12 =
  15. 15.2/3 − 4/8 =
  16. 16.1/6 + 2/3 =
  17. 17.1/12 + 3/7 =
  18. 18.10/12 + 1/4 =
  19. 19.2/8 + 1/2 =
  20. 20.3/11 + 1/9 =
  21. 21.4/10 + 6/12 =
  22. 22.1/3 + 2/12 =
  23. 23.2/3 + 7/12 =
  24. 24.4/11 + 4/10 =
  25. 25.4/5 + 2/11 =
  26. 26.3/11 + 2/3 =
  27. 27.2/4 + 5/10 =
  28. 28.1/5 + 4/10 =
  29. 29.3/9 − 1/4 =
  30. 30.2/5 + 3/6 =
  31. 31.2/3 − 1/4 =
  32. 32.1/8 + 3/6 =
  33. 33.6/10 + 11/12 =
  34. 34.6/7 − 7/9 =
  35. 35.2/3 + 6/9 =
  36. 36.3/4 + 6/10 =
  37. 37.1/3 + 6/7 =
  38. 38.1/3 − 1/6 =
  39. 39.5/12 + 1/2 =
  40. 40.4/9 + 3/10 =

Answer key

  1. 55/72
  2. 11/10
  3. 91/66
  4. 37/44
  5. 7/6
  6. 19/66
  7. 13/14
  8. 2/5
  9. 1/22
  10. 7/12
  11. 4/9
  12. 37/30
  13. 6/5
  14. 19/12
  15. 1/6
  16. 5/6
  17. 43/84
  18. 13/12
  19. 3/4
  20. 38/99
  21. 9/10
  22. 1/2
  23. 5/4
  24. 42/55
  25. 54/55
  26. 31/33
  27. 1
  28. 3/5
  29. 1/12
  30. 9/10
  31. 5/12
  32. 5/8
  33. 91/60
  34. 5/63
  35. 4/3
  36. 27/20
  37. 25/21
  38. 1/6
  39. 11/12
  40. 67/90

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