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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 256 · 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. 1.7/12 − 1/2 =
  2. 2.7/8 + 6/9 =
  3. 3.2/12 + 7/9 =
  4. 4.7/9 + 2/7 =
  5. 5.1/4 + 1/12 =
  6. 6.1/5 + 2/10 =
  7. 7.1/7 + 1/5 =
  8. 8.3/5 + 1/4 =
  9. 9.1/9 + 5/6 =
  10. 10.1/9 + 10/11 =
  11. 11.8/12 + 4/9 =
  12. 12.1/2 + 2/3 =
  13. 13.6/7 − 3/5 =
  14. 14.4/11 + 4/9 =
  15. 15.4/6 − 1/2 =
  16. 16.1/3 + 4/12 =
  17. 17.2/5 + 2/6 =
  18. 18.2/4 − 4/11 =
  19. 19.10/12 + 8/12 =
  20. 20.11/12 − 2/12 =
  21. 21.1/6 + 4/12 =
  22. 22.1/2 + 6/8 =
  23. 23.2/7 − 3/12 =
  24. 24.5/6 + 8/9 =
  25. 25.1/3 + 4/8 =
  26. 26.6/9 + 2/11 =
  27. 27.2/3 − 1/2 =
  28. 28.7/8 − 3/12 =
  29. 29.3/6 + 9/12 =
  30. 30.8/11 − 1/4 =
  31. 31.6/7 + 1/2 =
  32. 32.1/2 − 5/11 =
  33. 33.3/5 + 3/12 =
  34. 34.3/10 + 1/3 =
  35. 35.1/2 − 4/10 =
  36. 36.2/7 + 1/3 =
  37. 37.1/4 − 1/5 =
  38. 38.4/8 + 4/7 =
  39. 39.8/10 + 6/7 =
  40. 40.4/5 − 2/8 =

Answer key

  1. 1/12
  2. 37/24
  3. 17/18
  4. 67/63
  5. 1/3
  6. 2/5
  7. 12/35
  8. 17/20
  9. 17/18
  10. 101/99
  11. 10/9
  12. 7/6
  13. 9/35
  14. 80/99
  15. 1/6
  16. 2/3
  17. 11/15
  18. 3/22
  19. 3/2
  20. 3/4
  21. 1/2
  22. 5/4
  23. 1/28
  24. 31/18
  25. 5/6
  26. 28/33
  27. 1/6
  28. 5/8
  29. 5/4
  30. 21/44
  31. 19/14
  32. 1/22
  33. 17/20
  34. 19/30
  35. 1/10
  36. 13/21
  37. 1/20
  38. 15/14
  39. 58/35
  40. 11/20

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