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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 312 · 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. 1.3/7 − 1/3 =
  2. 2.3/5 + 2/9 =
  3. 3.1/2 − 2/5 =
  4. 4.10/12 − 1/2 =
  5. 5.5/9 + 4/10 =
  6. 6.6/8 + 3/9 =
  7. 7.7/10 + 1/3 =
  8. 8.1/3 + 1/2 =
  9. 9.2/3 + 7/9 =
  10. 10.2/5 − 2/8 =
  11. 11.1/2 − 1/9 =
  12. 12.7/10 + 2/3 =
  13. 13.2/11 + 3/5 =
  14. 14.2/5 + 2/8 =
  15. 15.1/3 − 1/6 =
  16. 16.5/6 − 2/6 =
  17. 17.3/4 + 1/5 =
  18. 18.3/5 + 1/10 =
  19. 19.7/8 − 6/9 =
  20. 20.1/4 + 1/4 =
  21. 21.1/3 + 1/4 =
  22. 22.9/11 − 3/4 =
  23. 23.1/5 + 1/2 =
  24. 24.1/3 + 3/7 =
  25. 25.5/6 − 1/10 =
  26. 26.1/6 + 1/6 =
  27. 27.5/6 + 1/3 =
  28. 28.8/9 − 1/3 =
  29. 29.1/6 + 2/8 =
  30. 30.2/12 + 4/9 =
  31. 31.1/6 + 5/6 =
  32. 32.2/3 − 2/7 =
  33. 33.3/4 − 2/8 =
  34. 34.1/9 + 1/4 =
  35. 35.3/11 − 1/5 =
  36. 36.7/8 + 1/2 =
  37. 37.4/12 + 3/9 =
  38. 38.2/8 − 1/11 =
  39. 39.2/8 − 1/5 =
  40. 40.9/11 − 2/5 =

Answer key

  1. 2/21
  2. 37/45
  3. 1/10
  4. 1/3
  5. 43/45
  6. 13/12
  7. 31/30
  8. 5/6
  9. 13/9
  10. 3/20
  11. 7/18
  12. 41/30
  13. 43/55
  14. 13/20
  15. 1/6
  16. 1/2
  17. 19/20
  18. 7/10
  19. 5/24
  20. 1/2
  21. 7/12
  22. 3/44
  23. 7/10
  24. 16/21
  25. 11/15
  26. 1/3
  27. 7/6
  28. 5/9
  29. 5/12
  30. 11/18
  31. 1
  32. 8/21
  33. 1/2
  34. 13/36
  35. 4/55
  36. 11/8
  37. 2/3
  38. 7/44
  39. 1/20
  40. 23/55

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