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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 637 · 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. 2.3/5 + 2/12 =
  3. 3.3/9 + 1/3 =
  4. 4.5/7 − 1/2 =
  5. 5.1/5 + 5/7 =
  6. 6.1/11 + 5/8 =
  7. 7.1/10 + 5/8 =
  8. 8.6/8 − 4/8 =
  9. 9.6/8 + 2/3 =
  10. 10.6/7 − 3/5 =
  11. 11.2/3 − 1/6 =
  12. 12.2/3 + 2/3 =
  13. 13.1/5 + 4/6 =
  14. 14.2/9 + 8/11 =
  15. 15.2/7 − 1/4 =
  16. 16.1/2 − 4/11 =
  17. 17.3/5 − 5/12 =
  18. 18.5/6 − 2/7 =
  19. 19.2/3 + 3/4 =
  20. 20.7/9 + 2/11 =
  21. 21.1/2 − 2/5 =
  22. 22.5/12 + 3/11 =
  23. 23.2/5 + 10/11 =
  24. 24.1/4 + 5/9 =
  25. 25.1/2 − 2/5 =
  26. 26.2/3 − 1/3 =
  27. 27.4/5 + 2/5 =
  28. 28.2/3 − 3/5 =
  29. 29.1/2 − 1/5 =
  30. 30.3/4 − 1/6 =
  31. 31.1/2 + 1/2 =
  32. 32.5/11 + 2/8 =
  33. 33.1/2 + 2/3 =
  34. 34.2/11 + 2/7 =
  35. 35.3/12 + 7/9 =
  36. 36.6/11 − 1/3 =
  37. 37.5/8 + 6/8 =
  38. 38.7/10 + 2/11 =
  39. 39.3/4 + 7/11 =
  40. 40.3/12 + 7/9 =

Answer key

  1. 5/12
  2. 23/30
  3. 2/3
  4. 3/14
  5. 32/35
  6. 63/88
  7. 29/40
  8. 1/4
  9. 17/12
  10. 9/35
  11. 1/2
  12. 4/3
  13. 13/15
  14. 94/99
  15. 1/28
  16. 3/22
  17. 11/60
  18. 23/42
  19. 17/12
  20. 95/99
  21. 1/10
  22. 91/132
  23. 72/55
  24. 29/36
  25. 1/10
  26. 1/3
  27. 6/5
  28. 1/15
  29. 3/10
  30. 7/12
  31. 1
  32. 31/44
  33. 7/6
  34. 36/77
  35. 37/36
  36. 7/33
  37. 11/8
  38. 97/110
  39. 61/44
  40. 37/36

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