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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 258 · 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. 1.2/3 + 2/3 =
  2. 2.1/2 + 3/4 =
  3. 3.9/10 − 1/2 =
  4. 4.5/12 − 1/3 =
  5. 5.1/2 + 1/3 =
  6. 6.4/6 − 4/8 =
  7. 7.1/2 − 2/6 =
  8. 8.3/6 + 1/4 =
  9. 9.6/8 − 5/7 =
  10. 10.1/2 + 1/11 =
  11. 11.4/5 + 4/8 =
  12. 12.1/8 + 9/10 =
  13. 13.3/9 + 9/10 =
  14. 14.6/9 + 3/4 =
  15. 15.2/3 + 7/8 =
  16. 16.1/11 + 6/10 =
  17. 17.2/4 + 8/9 =
  18. 18.3/4 − 1/3 =
  19. 19.5/9 + 10/11 =
  20. 20.1/5 + 1/4 =
  21. 21.4/7 + 2/7 =
  22. 22.4/5 − 1/5 =
  23. 23.1/3 + 1/3 =
  24. 24.1/2 + 4/10 =
  25. 25.1/4 − 1/12 =
  26. 26.2/3 − 1/8 =
  27. 27.1/2 + 6/8 =
  28. 28.1/2 − 4/12 =
  29. 29.5/6 − 5/10 =
  30. 30.1/6 − 1/7 =
  31. 31.1/3 + 1/3 =
  32. 32.1/3 + 3/9 =
  33. 33.7/9 − 8/11 =
  34. 34.5/8 + 1/5 =
  35. 35.1/8 + 2/6 =
  36. 36.7/11 − 3/6 =
  37. 37.3/9 − 1/11 =
  38. 38.3/4 + 1/2 =
  39. 39.1/8 + 3/7 =
  40. 40.1/3 + 3/4 =

Answer key

  1. 4/3
  2. 5/4
  3. 2/5
  4. 1/12
  5. 5/6
  6. 1/6
  7. 1/6
  8. 3/4
  9. 1/28
  10. 13/22
  11. 13/10
  12. 41/40
  13. 37/30
  14. 17/12
  15. 37/24
  16. 38/55
  17. 25/18
  18. 5/12
  19. 145/99
  20. 9/20
  21. 6/7
  22. 3/5
  23. 2/3
  24. 9/10
  25. 1/6
  26. 13/24
  27. 5/4
  28. 1/6
  29. 1/3
  30. 1/42
  31. 2/3
  32. 2/3
  33. 5/99
  34. 33/40
  35. 11/24
  36. 3/22
  37. 8/33
  38. 5/4
  39. 31/56
  40. 13/12

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