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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 321 · 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. 1.1/2 − 2/7 =
  2. 2.6/7 − 4/5 =
  3. 3.3/12 + 1/4 =
  4. 4.1/2 + 1/4 =
  5. 5.6/7 + 1/4 =
  6. 6.2/5 − 1/4 =
  7. 7.4/6 + 3/5 =
  8. 8.10/11 + 4/12 =
  9. 9.11/12 − 3/5 =
  10. 10.1/2 + 3/10 =
  11. 11.2/3 + 10/12 =
  12. 12.10/12 − 1/4 =
  13. 13.3/5 − 3/12 =
  14. 14.1/2 + 2/4 =
  15. 15.2/4 + 4/11 =
  16. 16.1/2 + 4/7 =
  17. 17.7/8 + 4/7 =
  18. 18.1/5 + 7/11 =
  19. 19.3/6 + 5/6 =
  20. 20.1/8 + 1/8 =
  21. 21.2/8 + 5/12 =
  22. 22.4/8 − 4/9 =
  23. 23.5/10 + 2/3 =
  24. 24.7/11 + 11/12 =
  25. 25.8/9 + 1/3 =
  26. 26.1/2 + 1/3 =
  27. 27.1/3 + 1/2 =
  28. 28.1/9 + 3/11 =
  29. 29.6/7 − 3/10 =
  30. 30.2/3 − 2/11 =
  31. 31.2/12 − 1/11 =
  32. 32.5/7 − 4/6 =
  33. 33.5/7 − 3/7 =
  34. 34.2/9 + 1/3 =
  35. 35.5/12 + 4/11 =
  36. 36.1/12 + 2/4 =
  37. 37.4/5 + 2/3 =
  38. 38.1/2 − 1/3 =
  39. 39.1/6 + 5/7 =
  40. 40.1/4 + 2/8 =

Answer key

  1. 3/14
  2. 2/35
  3. 1/2
  4. 3/4
  5. 31/28
  6. 3/20
  7. 19/15
  8. 41/33
  9. 19/60
  10. 4/5
  11. 3/2
  12. 7/12
  13. 7/20
  14. 1
  15. 19/22
  16. 15/14
  17. 81/56
  18. 46/55
  19. 4/3
  20. 1/4
  21. 2/3
  22. 1/18
  23. 7/6
  24. 205/132
  25. 11/9
  26. 5/6
  27. 5/6
  28. 38/99
  29. 39/70
  30. 16/33
  31. 5/66
  32. 1/21
  33. 2/7
  34. 5/9
  35. 103/132
  36. 7/12
  37. 22/15
  38. 1/6
  39. 37/42
  40. 1/2

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