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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 37 · 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. 1.8/9 − 2/4 =
  2. 2.7/10 + 1/5 =
  3. 3.6/9 − 2/4 =
  4. 4.1/7 + 1/12 =
  5. 5.1/2 − 2/5 =
  6. 6.4/6 + 1/3 =
  7. 7.2/9 + 1/5 =
  8. 8.1/2 − 1/6 =
  9. 9.3/5 + 2/3 =
  10. 10.1/2 + 4/6 =
  11. 11.2/3 + 1/2 =
  12. 12.1/4 + 10/11 =
  13. 13.1/5 + 9/10 =
  14. 14.2/4 − 1/3 =
  15. 15.1/7 + 1/5 =
  16. 16.4/8 + 1/2 =
  17. 17.4/6 − 7/12 =
  18. 18.1/3 + 3/7 =
  19. 19.5/6 − 5/9 =
  20. 20.4/9 + 2/3 =
  21. 21.1/4 + 6/9 =
  22. 22.8/12 + 3/10 =
  23. 23.7/12 − 1/3 =
  24. 24.1/5 + 1/10 =
  25. 25.3/6 − 2/8 =
  26. 26.1/2 + 2/10 =
  27. 27.2/3 + 10/11 =
  28. 28.6/7 + 8/11 =
  29. 29.4/5 + 6/9 =
  30. 30.5/9 − 1/2 =
  31. 31.2/3 − 1/8 =
  32. 32.5/7 + 1/2 =
  33. 33.6/9 − 5/9 =
  34. 34.6/9 + 4/10 =
  35. 35.2/3 − 6/10 =
  36. 36.1/10 + 3/5 =
  37. 37.9/12 − 4/6 =
  38. 38.11/12 − 1/3 =
  39. 39.1/4 + 5/7 =
  40. 40.2/5 + 2/8 =

Answer key

  1. 7/18
  2. 9/10
  3. 1/6
  4. 19/84
  5. 1/10
  6. 1
  7. 19/45
  8. 1/3
  9. 19/15
  10. 7/6
  11. 7/6
  12. 51/44
  13. 11/10
  14. 1/6
  15. 12/35
  16. 1
  17. 1/12
  18. 16/21
  19. 5/18
  20. 10/9
  21. 11/12
  22. 29/30
  23. 1/4
  24. 3/10
  25. 1/4
  26. 7/10
  27. 52/33
  28. 122/77
  29. 22/15
  30. 1/18
  31. 13/24
  32. 17/14
  33. 1/9
  34. 16/15
  35. 1/15
  36. 7/10
  37. 1/12
  38. 7/12
  39. 27/28
  40. 13/20

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