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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 880 · 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. 1.11/12 − 2/5 =
  2. 2.6/7 − 1/6 =
  3. 3.2/10 + 2/4 =
  4. 4.8/11 + 10/12 =
  5. 5.5/10 + 2/12 =
  6. 6.1/6 + 6/7 =
  7. 7.1/8 + 6/9 =
  8. 8.1/6 + 2/10 =
  9. 9.4/8 − 1/12 =
  10. 10.1/2 + 3/6 =
  11. 11.2/10 + 3/4 =
  12. 12.6/11 + 2/4 =
  13. 13.3/10 + 3/4 =
  14. 14.4/9 + 1/2 =
  15. 15.1/9 + 1/9 =
  16. 16.1/3 + 1/4 =
  17. 17.1/7 + 5/8 =
  18. 18.9/12 + 2/3 =
  19. 19.1/2 + 4/6 =
  20. 20.3/12 + 3/11 =
  21. 21.1/3 − 1/4 =
  22. 22.4/5 − 3/4 =
  23. 23.1/2 − 4/12 =
  24. 24.6/7 − 10/12 =
  25. 25.1/3 + 5/7 =
  26. 26.3/5 − 6/11 =
  27. 27.6/8 − 2/9 =
  28. 28.1/2 − 1/6 =
  29. 29.1/2 − 4/9 =
  30. 30.1/2 + 9/10 =
  31. 31.4/9 − 1/3 =
  32. 32.7/10 − 4/6 =
  33. 33.4/7 + 1/10 =
  34. 34.3/8 − 1/7 =
  35. 35.4/5 + 2/3 =
  36. 36.6/10 − 1/2 =
  37. 37.5/11 + 9/10 =
  38. 38.7/9 + 1/2 =
  39. 39.3/4 + 3/10 =
  40. 40.4/7 + 1/4 =

Answer key

  1. 31/60
  2. 29/42
  3. 7/10
  4. 103/66
  5. 2/3
  6. 43/42
  7. 19/24
  8. 11/30
  9. 5/12
  10. 1
  11. 19/20
  12. 23/22
  13. 21/20
  14. 17/18
  15. 2/9
  16. 7/12
  17. 43/56
  18. 17/12
  19. 7/6
  20. 23/44
  21. 1/12
  22. 1/20
  23. 1/6
  24. 1/42
  25. 22/21
  26. 3/55
  27. 19/36
  28. 1/3
  29. 1/18
  30. 7/5
  31. 1/9
  32. 1/30
  33. 47/70
  34. 13/56
  35. 22/15
  36. 1/10
  37. 149/110
  38. 23/18
  39. 21/20
  40. 23/28

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