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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 563 · 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. 1.1/5 + 1/2 =
  2. 2.1/3 + 4/5 =
  3. 3.1/4 + 2/12 =
  4. 4.1/2 + 1/4 =
  5. 5.1/3 + 9/11 =
  6. 6.6/12 + 4/8 =
  7. 7.2/3 − 1/3 =
  8. 8.1/2 + 2/4 =
  9. 9.2/3 − 4/11 =
  10. 10.2/4 − 3/12 =
  11. 11.5/12 + 10/11 =
  12. 12.4/5 − 3/4 =
  13. 13.4/9 − 1/3 =
  14. 14.5/8 + 2/12 =
  15. 15.1/4 − 1/6 =
  16. 16.5/12 + 5/11 =
  17. 17.1/3 + 1/3 =
  18. 18.7/9 + 1/6 =
  19. 19.1/9 + 2/5 =
  20. 20.8/10 + 1/2 =
  21. 21.2/10 + 3/7 =
  22. 22.1/4 + 4/6 =
  23. 23.3/7 + 5/11 =
  24. 24.3/11 + 3/5 =
  25. 25.8/9 − 4/5 =
  26. 26.2/4 + 5/10 =
  27. 27.1/3 + 2/8 =
  28. 28.11/12 − 2/3 =
  29. 29.7/12 − 1/6 =
  30. 30.5/8 − 1/3 =
  31. 31.3/5 − 1/3 =
  32. 32.2/8 + 2/3 =
  33. 33.1/2 − 1/4 =
  34. 34.5/10 + 4/11 =
  35. 35.5/9 + 5/8 =
  36. 36.11/12 − 1/3 =
  37. 37.1/2 + 6/7 =
  38. 38.3/5 − 2/6 =
  39. 39.5/10 − 1/4 =
  40. 40.7/9 − 3/10 =

Answer key

  1. 7/10
  2. 17/15
  3. 5/12
  4. 3/4
  5. 38/33
  6. 1
  7. 1/3
  8. 1
  9. 10/33
  10. 1/4
  11. 175/132
  12. 1/20
  13. 1/9
  14. 19/24
  15. 1/12
  16. 115/132
  17. 2/3
  18. 17/18
  19. 23/45
  20. 13/10
  21. 22/35
  22. 11/12
  23. 68/77
  24. 48/55
  25. 4/45
  26. 1
  27. 7/12
  28. 1/4
  29. 5/12
  30. 7/24
  31. 4/15
  32. 11/12
  33. 1/4
  34. 19/22
  35. 85/72
  36. 7/12
  37. 19/14
  38. 4/15
  39. 1/4
  40. 43/90

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