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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 318 · 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. 1.5/6 + 7/9 =
  2. 2.4/12 + 1/4 =
  3. 3.1/6 + 3/6 =
  4. 4.7/9 − 3/5 =
  5. 5.4/7 − 1/2 =
  6. 6.2/6 − 1/5 =
  7. 7.6/8 + 9/11 =
  8. 8.2/12 + 1/3 =
  9. 9.10/12 + 3/11 =
  10. 10.8/10 − 2/4 =
  11. 11.2/4 + 5/10 =
  12. 12.1/2 − 2/9 =
  13. 13.2/3 + 2/7 =
  14. 14.5/8 + 5/9 =
  15. 15.1/5 + 5/8 =
  16. 16.2/9 − 1/6 =
  17. 17.5/10 − 2/6 =
  18. 18.2/12 + 1/11 =
  19. 19.2/3 − 4/10 =
  20. 20.3/11 + 3/4 =
  21. 21.2/3 − 1/12 =
  22. 22.1/3 − 1/7 =
  23. 23.2/9 + 3/6 =
  24. 24.2/4 + 3/11 =
  25. 25.1/4 − 1/6 =
  26. 26.3/4 + 1/7 =
  27. 27.1/5 − 1/6 =
  28. 28.3/7 − 2/5 =
  29. 29.4/9 + 2/5 =
  30. 30.2/6 + 10/12 =
  31. 31.4/5 + 1/2 =
  32. 32.2/12 + 3/6 =
  33. 33.1/2 − 1/4 =
  34. 34.4/12 + 3/10 =
  35. 35.1/2 − 1/3 =
  36. 36.7/9 − 3/6 =
  37. 37.1/7 + 1/3 =
  38. 38.3/4 − 2/4 =
  39. 39.3/9 + 1/2 =
  40. 40.3/4 + 3/4 =

Answer key

  1. 29/18
  2. 7/12
  3. 2/3
  4. 8/45
  5. 1/14
  6. 2/15
  7. 69/44
  8. 1/2
  9. 73/66
  10. 3/10
  11. 1
  12. 5/18
  13. 20/21
  14. 85/72
  15. 33/40
  16. 1/18
  17. 1/6
  18. 17/66
  19. 4/15
  20. 45/44
  21. 7/12
  22. 4/21
  23. 13/18
  24. 17/22
  25. 1/12
  26. 25/28
  27. 1/30
  28. 1/35
  29. 38/45
  30. 7/6
  31. 13/10
  32. 2/3
  33. 1/4
  34. 19/30
  35. 1/6
  36. 5/18
  37. 10/21
  38. 1/4
  39. 5/6
  40. 3/2

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