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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 751 · 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. 1.1/3 − 2/11 =
  2. 2.6/12 − 2/12 =
  3. 3.3/9 + 1/7 =
  4. 4.2/4 + 10/11 =
  5. 5.1/8 + 7/8 =
  6. 6.8/11 − 1/2 =
  7. 7.5/7 + 1/2 =
  8. 8.2/3 − 3/12 =
  9. 9.2/3 + 2/3 =
  10. 10.1/6 + 1/4 =
  11. 11.3/4 + 1/9 =
  12. 12.1/3 + 2/8 =
  13. 13.8/10 + 3/10 =
  14. 14.1/5 + 5/6 =
  15. 15.5/12 + 4/5 =
  16. 16.6/12 + 6/11 =
  17. 17.1/2 + 1/2 =
  18. 18.3/7 + 3/9 =
  19. 19.7/12 + 1/11 =
  20. 20.2/5 + 2/3 =
  21. 21.1/11 − 1/12 =
  22. 22.3/5 + 4/12 =
  23. 23.2/10 + 1/4 =
  24. 24.6/7 − 2/10 =
  25. 25.8/9 − 4/12 =
  26. 26.3/6 + 3/6 =
  27. 27.2/6 + 5/6 =
  28. 28.3/9 + 1/9 =
  29. 29.4/5 + 4/8 =
  30. 30.3/6 + 7/8 =
  31. 31.2/3 + 1/3 =
  32. 32.6/12 − 2/7 =
  33. 33.3/6 + 6/8 =
  34. 34.3/12 + 3/7 =
  35. 35.3/7 + 9/12 =
  36. 36.2/3 + 2/5 =
  37. 37.7/8 − 1/2 =
  38. 38.7/10 + 1/4 =
  39. 39.1/7 + 1/8 =
  40. 40.3/5 + 2/3 =

Answer key

  1. 5/33
  2. 1/3
  3. 10/21
  4. 31/22
  5. 1
  6. 5/22
  7. 17/14
  8. 5/12
  9. 4/3
  10. 5/12
  11. 31/36
  12. 7/12
  13. 11/10
  14. 31/30
  15. 73/60
  16. 23/22
  17. 1
  18. 16/21
  19. 89/132
  20. 16/15
  21. 1/132
  22. 14/15
  23. 9/20
  24. 23/35
  25. 5/9
  26. 1
  27. 7/6
  28. 4/9
  29. 13/10
  30. 11/8
  31. 1
  32. 3/14
  33. 5/4
  34. 19/28
  35. 33/28
  36. 16/15
  37. 3/8
  38. 19/20
  39. 15/56
  40. 19/15

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