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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 263 · 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. 1.11/12 − 1/10 =
  2. 2.5/9 − 1/6 =
  3. 3.9/12 − 4/10 =
  4. 4.3/4 + 2/5 =
  5. 5.8/12 − 1/2 =
  6. 6.1/3 + 2/11 =
  7. 7.2/8 + 1/2 =
  8. 8.1/4 + 6/7 =
  9. 9.3/5 − 1/2 =
  10. 10.1/2 − 1/8 =
  11. 11.6/9 + 1/8 =
  12. 12.1/4 + 3/7 =
  13. 13.3/4 + 6/12 =
  14. 14.1/12 + 2/4 =
  15. 15.3/6 + 1/2 =
  16. 16.1/4 + 1/2 =
  17. 17.1/4 + 1/4 =
  18. 18.6/12 − 5/12 =
  19. 19.6/11 + 2/3 =
  20. 20.6/9 − 1/2 =
  21. 21.9/10 + 3/4 =
  22. 22.7/8 + 1/2 =
  23. 23.9/11 − 2/6 =
  24. 24.1/9 + 1/5 =
  25. 25.1/10 + 3/9 =
  26. 26.2/4 − 1/3 =
  27. 27.2/4 + 1/2 =
  28. 28.1/5 + 2/8 =
  29. 29.7/9 + 6/9 =
  30. 30.2/3 + 10/12 =
  31. 31.1/3 + 3/4 =
  32. 32.1/3 − 2/10 =
  33. 33.5/10 + 2/3 =
  34. 34.7/8 − 4/5 =
  35. 35.2/3 + 11/12 =
  36. 36.8/9 − 8/12 =
  37. 37.4/5 + 1/2 =
  38. 38.3/4 − 2/4 =
  39. 39.4/5 + 1/2 =
  40. 40.1/3 + 1/8 =

Answer key

  1. 49/60
  2. 7/18
  3. 7/20
  4. 23/20
  5. 1/6
  6. 17/33
  7. 3/4
  8. 31/28
  9. 1/10
  10. 3/8
  11. 19/24
  12. 19/28
  13. 5/4
  14. 7/12
  15. 1
  16. 3/4
  17. 1/2
  18. 1/12
  19. 40/33
  20. 1/6
  21. 33/20
  22. 11/8
  23. 16/33
  24. 14/45
  25. 13/30
  26. 1/6
  27. 1
  28. 9/20
  29. 13/9
  30. 3/2
  31. 13/12
  32. 2/15
  33. 7/6
  34. 3/40
  35. 19/12
  36. 2/9
  37. 13/10
  38. 1/4
  39. 13/10
  40. 11/24

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