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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 337 · 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. 1.1/9 + 2/4 =
  2. 2.1/4 − 1/7 =
  3. 3.3/4 + 1/3 =
  4. 4.3/4 − 2/5 =
  5. 5.7/8 − 2/10 =
  6. 6.1/4 + 5/6 =
  7. 7.5/6 + 3/12 =
  8. 8.5/6 + 2/4 =
  9. 9.3/5 + 2/7 =
  10. 10.2/4 + 1/10 =
  11. 11.9/10 + 3/8 =
  12. 12.1/6 − 1/9 =
  13. 13.4/11 + 1/2 =
  14. 14.1/7 + 8/11 =
  15. 15.1/2 − 1/4 =
  16. 16.1/2 + 6/8 =
  17. 17.2/3 − 2/9 =
  18. 18.10/12 − 4/6 =
  19. 19.5/9 − 3/9 =
  20. 20.7/8 + 4/5 =
  21. 21.2/9 + 1/2 =
  22. 22.11/12 − 1/3 =
  23. 23.1/3 + 5/7 =
  24. 24.2/5 + 1/5 =
  25. 25.1/2 − 2/9 =
  26. 26.1/5 + 2/11 =
  27. 27.4/12 + 4/6 =
  28. 28.1/3 + 6/7 =
  29. 29.4/5 − 8/12 =
  30. 30.2/6 + 4/7 =
  31. 31.11/12 − 1/3 =
  32. 32.1/4 + 9/11 =
  33. 33.2/4 + 8/12 =
  34. 34.5/7 + 4/6 =
  35. 35.3/4 − 1/3 =
  36. 36.2/3 + 4/9 =
  37. 37.1/6 + 2/4 =
  38. 38.3/12 + 2/3 =
  39. 39.1/9 + 7/11 =
  40. 40.9/12 − 3/12 =

Answer key

  1. 11/18
  2. 3/28
  3. 13/12
  4. 7/20
  5. 27/40
  6. 13/12
  7. 13/12
  8. 4/3
  9. 31/35
  10. 3/5
  11. 51/40
  12. 1/18
  13. 19/22
  14. 67/77
  15. 1/4
  16. 5/4
  17. 4/9
  18. 1/6
  19. 2/9
  20. 67/40
  21. 13/18
  22. 7/12
  23. 22/21
  24. 3/5
  25. 5/18
  26. 21/55
  27. 1
  28. 25/21
  29. 2/15
  30. 19/21
  31. 7/12
  32. 47/44
  33. 7/6
  34. 29/21
  35. 5/12
  36. 10/9
  37. 2/3
  38. 11/12
  39. 74/99
  40. 1/2

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