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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 861 · 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 + 4/11 =
  2. 2.2/12 + 1/9 =
  3. 3.4/7 + 2/12 =
  4. 4.5/6 − 8/12 =
  5. 5.2/5 + 2/4 =
  6. 6.3/5 + 2/4 =
  7. 7.1/4 + 3/9 =
  8. 8.2/6 − 1/8 =
  9. 9.2/5 − 1/3 =
  10. 10.11/12 + 1/3 =
  11. 11.3/9 + 2/6 =
  12. 12.1/5 + 3/4 =
  13. 13.1/2 + 1/2 =
  14. 14.3/4 − 2/8 =
  15. 15.2/12 + 1/3 =
  16. 16.1/3 + 2/6 =
  17. 17.5/6 + 5/11 =
  18. 18.4/6 + 2/4 =
  19. 19.3/5 − 2/4 =
  20. 20.1/2 − 1/10 =
  21. 21.3/11 + 1/3 =
  22. 22.3/11 + 3/4 =
  23. 23.11/12 + 1/2 =
  24. 24.1/5 + 3/4 =
  25. 25.1/2 − 2/8 =
  26. 26.5/11 − 4/9 =
  27. 27.2/5 + 1/3 =
  28. 28.5/9 − 2/5 =
  29. 29.1/7 + 1/5 =
  30. 30.3/5 − 1/3 =
  31. 31.2/4 + 1/6 =
  32. 32.1/5 + 2/3 =
  33. 33.5/7 + 2/6 =
  34. 34.1/7 + 1/2 =
  35. 35.2/3 + 2/12 =
  36. 36.6/9 + 9/11 =
  37. 37.7/8 − 3/11 =
  38. 38.6/12 − 1/3 =
  39. 39.2/7 − 2/8 =
  40. 40.3/6 + 2/3 =

Answer key

  1. 19/22
  2. 5/18
  3. 31/42
  4. 1/6
  5. 9/10
  6. 11/10
  7. 7/12
  8. 5/24
  9. 1/15
  10. 5/4
  11. 2/3
  12. 19/20
  13. 1
  14. 1/2
  15. 1/2
  16. 2/3
  17. 85/66
  18. 7/6
  19. 1/10
  20. 2/5
  21. 20/33
  22. 45/44
  23. 17/12
  24. 19/20
  25. 1/4
  26. 1/99
  27. 11/15
  28. 7/45
  29. 12/35
  30. 4/15
  31. 2/3
  32. 13/15
  33. 22/21
  34. 9/14
  35. 5/6
  36. 49/33
  37. 53/88
  38. 1/6
  39. 1/28
  40. 7/6

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