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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 527 · 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. 1.8/10 − 6/9 =
  2. 2.2/12 + 2/12 =
  3. 3.2/9 + 4/6 =
  4. 4.11/12 − 1/3 =
  5. 5.3/4 − 1/8 =
  6. 6.7/10 − 1/2 =
  7. 7.3/7 + 3/12 =
  8. 8.4/10 − 1/4 =
  9. 9.3/4 − 2/11 =
  10. 10.2/3 − 1/4 =
  11. 11.7/11 + 7/9 =
  12. 12.1/2 + 5/7 =
  13. 13.3/7 + 2/5 =
  14. 14.1/2 + 9/10 =
  15. 15.1/10 + 11/12 =
  16. 16.1/2 + 6/10 =
  17. 17.2/9 + 1/4 =
  18. 18.1/4 + 1/3 =
  19. 19.1/6 + 2/5 =
  20. 20.1/3 + 7/8 =
  21. 21.4/9 − 3/12 =
  22. 22.3/11 − 1/6 =
  23. 23.1/5 + 6/11 =
  24. 24.4/7 + 4/9 =
  25. 25.6/8 − 5/8 =
  26. 26.7/12 − 1/7 =
  27. 27.1/2 + 1/2 =
  28. 28.3/4 − 6/12 =
  29. 29.4/12 − 2/11 =
  30. 30.7/9 − 2/9 =
  31. 31.1/5 + 1/2 =
  32. 32.2/10 − 1/11 =
  33. 33.1/3 + 2/3 =
  34. 34.4/6 + 2/6 =
  35. 35.1/5 + 1/4 =
  36. 36.2/3 − 3/11 =
  37. 37.2/3 − 2/12 =
  38. 38.1/3 − 2/8 =
  39. 39.2/3 − 5/9 =
  40. 40.7/9 − 4/11 =

Answer key

  1. 2/15
  2. 1/3
  3. 8/9
  4. 7/12
  5. 5/8
  6. 1/5
  7. 19/28
  8. 3/20
  9. 25/44
  10. 5/12
  11. 140/99
  12. 17/14
  13. 29/35
  14. 7/5
  15. 61/60
  16. 11/10
  17. 17/36
  18. 7/12
  19. 17/30
  20. 29/24
  21. 7/36
  22. 7/66
  23. 41/55
  24. 64/63
  25. 1/8
  26. 37/84
  27. 1
  28. 1/4
  29. 5/33
  30. 5/9
  31. 7/10
  32. 6/55
  33. 1
  34. 1
  35. 9/20
  36. 13/33
  37. 1/2
  38. 1/12
  39. 1/9
  40. 41/99

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