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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 200 · 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. 1.1/7 + 1/8 =
  2. 2.1/11 + 2/9 =
  3. 3.2/3 + 10/12 =
  4. 4.2/3 − 1/7 =
  5. 5.1/2 + 8/9 =
  6. 6.2/3 + 9/12 =
  7. 7.4/10 + 2/7 =
  8. 8.1/3 + 8/9 =
  9. 9.6/10 − 1/2 =
  10. 10.2/8 + 2/5 =
  11. 11.1/2 + 1/2 =
  12. 12.7/10 + 1/2 =
  13. 13.1/4 + 2/5 =
  14. 14.5/6 − 1/9 =
  15. 15.1/2 + 1/2 =
  16. 16.2/4 + 1/2 =
  17. 17.8/11 − 2/4 =
  18. 18.1/2 + 4/7 =
  19. 19.4/12 + 3/6 =
  20. 20.1/2 + 1/12 =
  21. 21.6/8 + 1/2 =
  22. 22.3/5 − 1/2 =
  23. 23.1/3 + 1/2 =
  24. 24.3/5 − 1/10 =
  25. 25.2/4 + 3/4 =
  26. 26.2/9 + 1/2 =
  27. 27.3/4 − 2/6 =
  28. 28.1/3 + 1/3 =
  29. 29.8/9 − 1/2 =
  30. 30.8/12 + 7/11 =
  31. 31.8/9 + 1/5 =
  32. 32.10/11 + 1/2 =
  33. 33.1/3 + 2/9 =
  34. 34.9/11 − 1/3 =
  35. 35.1/4 + 8/9 =
  36. 36.1/2 + 2/3 =
  37. 37.5/9 + 1/2 =
  38. 38.9/11 − 9/12 =
  39. 39.2/3 + 4/5 =
  40. 40.4/5 + 6/7 =

Answer key

  1. 15/56
  2. 31/99
  3. 3/2
  4. 11/21
  5. 25/18
  6. 17/12
  7. 24/35
  8. 11/9
  9. 1/10
  10. 13/20
  11. 1
  12. 6/5
  13. 13/20
  14. 13/18
  15. 1
  16. 1
  17. 5/22
  18. 15/14
  19. 5/6
  20. 7/12
  21. 5/4
  22. 1/10
  23. 5/6
  24. 1/2
  25. 5/4
  26. 13/18
  27. 5/12
  28. 2/3
  29. 7/18
  30. 43/33
  31. 49/45
  32. 31/22
  33. 5/9
  34. 16/33
  35. 41/36
  36. 7/6
  37. 19/18
  38. 3/44
  39. 22/15
  40. 58/35

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