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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 660 · 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. 1.4/5 − 8/11 =
  2. 2.10/11 − 3/4 =
  3. 3.1/2 − 3/7 =
  4. 4.9/10 + 3/4 =
  5. 5.4/5 − 1/2 =
  6. 6.5/7 − 1/2 =
  7. 7.3/5 − 4/10 =
  8. 8.1/5 + 1/6 =
  9. 9.2/6 + 3/9 =
  10. 10.1/2 + 1/6 =
  11. 11.4/6 + 5/6 =
  12. 12.6/12 + 3/10 =
  13. 13.5/6 + 5/11 =
  14. 14.2/4 + 4/8 =
  15. 15.4/10 − 1/6 =
  16. 16.1/2 − 2/8 =
  17. 17.4/11 − 2/8 =
  18. 18.3/4 − 2/12 =
  19. 19.5/10 + 2/3 =
  20. 20.2/3 + 10/11 =
  21. 21.1/3 + 1/2 =
  22. 22.1/2 + 1/2 =
  23. 23.8/11 − 1/10 =
  24. 24.5/6 − 1/9 =
  25. 25.5/6 − 2/3 =
  26. 26.2/4 + 2/4 =
  27. 27.1/2 − 3/7 =
  28. 28.2/3 + 3/11 =
  29. 29.4/10 + 2/3 =
  30. 30.2/3 − 5/11 =
  31. 31.1/10 + 2/4 =
  32. 32.5/6 − 7/9 =
  33. 33.1/7 + 6/7 =
  34. 34.3/12 + 1/5 =
  35. 35.6/7 − 1/10 =
  36. 36.1/2 − 2/9 =
  37. 37.3/4 + 1/9 =
  38. 38.1/3 + 1/9 =
  39. 39.1/8 + 3/4 =
  40. 40.2/3 + 1/3 =

Answer key

  1. 4/55
  2. 7/44
  3. 1/14
  4. 33/20
  5. 3/10
  6. 3/14
  7. 1/5
  8. 11/30
  9. 2/3
  10. 2/3
  11. 3/2
  12. 4/5
  13. 85/66
  14. 1
  15. 7/30
  16. 1/4
  17. 5/44
  18. 7/12
  19. 7/6
  20. 52/33
  21. 5/6
  22. 1
  23. 69/110
  24. 13/18
  25. 1/6
  26. 1
  27. 1/14
  28. 31/33
  29. 16/15
  30. 7/33
  31. 3/5
  32. 1/18
  33. 1
  34. 9/20
  35. 53/70
  36. 5/18
  37. 31/36
  38. 4/9
  39. 7/8
  40. 1

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