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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 285 · 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 − 6/12 =
  2. 2.1/2 − 1/6 =
  3. 3.4/8 − 1/5 =
  4. 4.5/12 + 5/6 =
  5. 5.7/12 − 1/2 =
  6. 6.1/2 + 8/10 =
  7. 7.5/9 − 1/8 =
  8. 8.1/6 + 7/9 =
  9. 9.1/3 + 2/3 =
  10. 10.4/10 + 1/12 =
  11. 11.2/11 + 1/2 =
  12. 12.3/11 + 11/12 =
  13. 13.6/7 + 1/2 =
  14. 14.1/5 − 1/7 =
  15. 15.9/11 + 2/9 =
  16. 16.3/4 + 1/5 =
  17. 17.3/4 − 1/5 =
  18. 18.2/3 + 1/2 =
  19. 19.9/12 + 1/4 =
  20. 20.3/4 + 5/10 =
  21. 21.2/3 − 3/9 =
  22. 22.3/8 + 4/5 =
  23. 23.5/8 − 5/12 =
  24. 24.8/11 + 4/6 =
  25. 25.2/4 + 2/4 =
  26. 26.7/12 + 1/5 =
  27. 27.2/4 + 4/8 =
  28. 28.5/10 + 1/2 =
  29. 29.5/10 − 1/6 =
  30. 30.4/7 + 3/5 =
  31. 31.2/3 − 5/12 =
  32. 32.1/10 + 1/4 =
  33. 33.10/11 + 1/5 =
  34. 34.3/11 − 2/9 =
  35. 35.2/6 + 8/10 =
  36. 36.1/5 + 1/5 =
  37. 37.3/4 + 1/2 =
  38. 38.1/3 + 8/9 =
  39. 39.1/3 + 10/12 =
  40. 40.2/10 + 1/4 =

Answer key

  1. 1/6
  2. 1/3
  3. 3/10
  4. 5/4
  5. 1/12
  6. 13/10
  7. 31/72
  8. 17/18
  9. 1
  10. 29/60
  11. 15/22
  12. 157/132
  13. 19/14
  14. 2/35
  15. 103/99
  16. 19/20
  17. 11/20
  18. 7/6
  19. 1
  20. 5/4
  21. 1/3
  22. 47/40
  23. 5/24
  24. 46/33
  25. 1
  26. 47/60
  27. 1
  28. 1
  29. 1/3
  30. 41/35
  31. 1/4
  32. 7/20
  33. 61/55
  34. 5/99
  35. 17/15
  36. 2/5
  37. 5/4
  38. 11/9
  39. 7/6
  40. 9/20

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