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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 131 · 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. 1.1/2 + 2/4 =
  2. 2.6/12 − 2/5 =
  3. 3.3/4 + 1/3 =
  4. 4.1/2 + 1/2 =
  5. 5.2/3 + 2/5 =
  6. 6.3/8 − 1/6 =
  7. 7.2/12 + 9/12 =
  8. 8.6/12 + 2/4 =
  9. 9.10/11 + 6/9 =
  10. 10.2/12 + 1/2 =
  11. 11.7/8 − 7/9 =
  12. 12.3/11 + 2/4 =
  13. 13.1/9 + 2/12 =
  14. 14.4/7 + 3/4 =
  15. 15.2/8 + 1/5 =
  16. 16.2/4 + 5/9 =
  17. 17.2/6 + 1/4 =
  18. 18.1/5 + 6/7 =
  19. 19.8/10 + 9/10 =
  20. 20.3/4 + 2/3 =
  21. 21.5/9 + 3/8 =
  22. 22.3/10 + 5/8 =
  23. 23.1/6 + 1/3 =
  24. 24.8/11 − 4/7 =
  25. 25.2/6 − 1/6 =
  26. 26.3/4 + 1/3 =
  27. 27.1/2 − 1/3 =
  28. 28.4/5 − 4/8 =
  29. 29.6/11 − 5/12 =
  30. 30.5/9 − 1/2 =
  31. 31.3/7 + 1/2 =
  32. 32.1/3 + 2/11 =
  33. 33.10/11 + 2/8 =
  34. 34.2/4 + 1/2 =
  35. 35.5/8 + 2/7 =
  36. 36.2/6 − 2/7 =
  37. 37.2/3 + 2/4 =
  38. 38.1/2 + 7/11 =
  39. 39.1/3 + 7/12 =
  40. 40.8/10 − 4/6 =

Answer key

  1. 1
  2. 1/10
  3. 13/12
  4. 1
  5. 16/15
  6. 5/24
  7. 11/12
  8. 1
  9. 52/33
  10. 2/3
  11. 7/72
  12. 17/22
  13. 5/18
  14. 37/28
  15. 9/20
  16. 19/18
  17. 7/12
  18. 37/35
  19. 17/10
  20. 17/12
  21. 67/72
  22. 37/40
  23. 1/2
  24. 12/77
  25. 1/6
  26. 13/12
  27. 1/6
  28. 3/10
  29. 17/132
  30. 1/18
  31. 13/14
  32. 17/33
  33. 51/44
  34. 1
  35. 51/56
  36. 1/21
  37. 7/6
  38. 25/22
  39. 11/12
  40. 2/15

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