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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 40 · 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. 1.3/11 + 1/3 =
  2. 2.1/2 − 4/12 =
  3. 3.8/11 − 2/4 =
  4. 4.6/7 + 2/3 =
  5. 5.8/10 + 11/12 =
  6. 6.5/11 + 11/12 =
  7. 7.2/3 − 3/5 =
  8. 8.3/12 + 1/4 =
  9. 9.6/9 − 1/2 =
  10. 10.1/4 − 1/11 =
  11. 11.1/4 + 4/12 =
  12. 12.1/2 + 3/8 =
  13. 13.5/12 + 2/3 =
  14. 14.2/6 + 1/2 =
  15. 15.6/12 − 5/12 =
  16. 16.7/10 − 1/2 =
  17. 17.3/5 + 1/4 =
  18. 18.9/10 + 7/9 =
  19. 19.1/5 + 1/3 =
  20. 20.5/9 − 2/7 =
  21. 21.3/7 − 1/9 =
  22. 22.1/2 + 1/2 =
  23. 23.7/9 + 3/5 =
  24. 24.3/6 − 5/11 =
  25. 25.6/9 + 1/2 =
  26. 26.4/5 + 1/4 =
  27. 27.4/11 + 1/2 =
  28. 28.3/6 + 3/6 =
  29. 29.4/9 + 5/8 =
  30. 30.7/8 + 4/9 =
  31. 31.1/2 + 1/2 =
  32. 32.8/9 − 1/2 =
  33. 33.11/12 + 4/5 =
  34. 34.8/11 − 1/4 =
  35. 35.8/9 − 2/8 =
  36. 36.1/3 + 1/5 =
  37. 37.6/11 − 1/6 =
  38. 38.5/9 + 4/7 =
  39. 39.5/11 − 1/6 =
  40. 40.3/8 − 2/8 =

Answer key

  1. 20/33
  2. 1/6
  3. 5/22
  4. 32/21
  5. 103/60
  6. 181/132
  7. 1/15
  8. 1/2
  9. 1/6
  10. 7/44
  11. 7/12
  12. 7/8
  13. 13/12
  14. 5/6
  15. 1/12
  16. 1/5
  17. 17/20
  18. 151/90
  19. 8/15
  20. 17/63
  21. 20/63
  22. 1
  23. 62/45
  24. 1/22
  25. 7/6
  26. 21/20
  27. 19/22
  28. 1
  29. 77/72
  30. 95/72
  31. 1
  32. 7/18
  33. 103/60
  34. 21/44
  35. 23/36
  36. 8/15
  37. 25/66
  38. 71/63
  39. 19/66
  40. 1/8

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