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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 744 · 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 − 2/8 =
  2. 2.11/12 − 6/11 =
  3. 3.6/10 + 1/2 =
  4. 4.10/11 − 5/8 =
  5. 5.1/6 + 8/11 =
  6. 6.2/3 − 4/7 =
  7. 7.8/10 + 1/2 =
  8. 8.1/6 + 1/4 =
  9. 9.6/9 − 4/10 =
  10. 10.1/9 + 4/10 =
  11. 11.7/8 + 4/11 =
  12. 12.10/11 + 1/7 =
  13. 13.7/10 + 4/7 =
  14. 14.1/4 − 1/5 =
  15. 15.3/4 − 2/5 =
  16. 16.1/5 + 2/7 =
  17. 17.1/5 + 1/6 =
  18. 18.3/12 + 9/10 =
  19. 19.1/2 + 2/5 =
  20. 20.1/7 − 1/8 =
  21. 21.1/3 + 2/10 =
  22. 22.5/8 + 6/12 =
  23. 23.8/11 + 2/7 =
  24. 24.3/4 + 1/10 =
  25. 25.1/2 + 4/5 =
  26. 26.5/6 − 5/9 =
  27. 27.5/6 + 4/5 =
  28. 28.10/11 + 2/4 =
  29. 29.6/8 + 2/7 =
  30. 30.1/7 + 2/4 =
  31. 31.2/6 + 3/4 =
  32. 32.3/4 + 5/9 =
  33. 33.1/2 − 2/11 =
  34. 34.2/7 + 1/4 =
  35. 35.2/6 − 1/4 =
  36. 36.3/9 − 1/6 =
  37. 37.2/3 + 2/3 =
  38. 38.1/2 + 1/12 =
  39. 39.3/11 + 7/11 =
  40. 40.2/5 + 1/8 =

Answer key

  1. 5/12
  2. 49/132
  3. 11/10
  4. 25/88
  5. 59/66
  6. 2/21
  7. 13/10
  8. 5/12
  9. 4/15
  10. 23/45
  11. 109/88
  12. 81/77
  13. 89/70
  14. 1/20
  15. 7/20
  16. 17/35
  17. 11/30
  18. 23/20
  19. 9/10
  20. 1/56
  21. 8/15
  22. 9/8
  23. 78/77
  24. 17/20
  25. 13/10
  26. 5/18
  27. 49/30
  28. 31/22
  29. 29/28
  30. 9/14
  31. 13/12
  32. 47/36
  33. 7/22
  34. 15/28
  35. 1/12
  36. 1/6
  37. 4/3
  38. 7/12
  39. 10/11
  40. 21/40

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