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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 19 · 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. 1.3/8 + 1/6 =
  2. 2.2/9 + 2/3 =
  3. 3.1/4 + 9/11 =
  4. 4.5/6 + 3/10 =
  5. 5.1/2 − 3/8 =
  6. 6.3/9 + 3/8 =
  7. 7.2/4 − 1/4 =
  8. 8.1/2 + 2/8 =
  9. 9.1/9 + 4/12 =
  10. 10.7/9 + 1/5 =
  11. 11.7/12 − 5/10 =
  12. 12.1/2 + 4/11 =
  13. 13.3/12 + 1/3 =
  14. 14.1/3 + 1/8 =
  15. 15.6/11 + 5/6 =
  16. 16.2/11 + 2/12 =
  17. 17.1/3 + 1/11 =
  18. 18.6/12 − 1/10 =
  19. 19.1/6 + 1/3 =
  20. 20.2/5 − 1/3 =
  21. 21.1/12 + 2/3 =
  22. 22.7/11 − 1/5 =
  23. 23.8/11 − 1/12 =
  24. 24.1/2 − 1/5 =
  25. 25.4/6 + 3/8 =
  26. 26.1/2 + 2/11 =
  27. 27.4/6 − 2/4 =
  28. 28.9/12 + 1/4 =
  29. 29.3/4 + 9/10 =
  30. 30.1/11 + 5/6 =
  31. 31.3/9 + 2/5 =
  32. 32.6/9 − 2/7 =
  33. 33.3/4 + 2/10 =
  34. 34.1/4 + 4/7 =
  35. 35.4/5 − 3/10 =
  36. 36.6/11 − 2/4 =
  37. 37.6/12 − 3/11 =
  38. 38.1/3 + 4/11 =
  39. 39.3/5 − 1/3 =
  40. 40.4/11 + 8/12 =

Answer key

  1. 13/24
  2. 8/9
  3. 47/44
  4. 17/15
  5. 1/8
  6. 17/24
  7. 1/4
  8. 3/4
  9. 4/9
  10. 44/45
  11. 1/12
  12. 19/22
  13. 7/12
  14. 11/24
  15. 91/66
  16. 23/66
  17. 14/33
  18. 2/5
  19. 1/2
  20. 1/15
  21. 3/4
  22. 24/55
  23. 85/132
  24. 3/10
  25. 25/24
  26. 15/22
  27. 1/6
  28. 1
  29. 33/20
  30. 61/66
  31. 11/15
  32. 8/21
  33. 19/20
  34. 23/28
  35. 1/2
  36. 1/22
  37. 5/22
  38. 23/33
  39. 4/15
  40. 34/33

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