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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 723 · 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 + 1/2 =
  2. 2.3/4 − 1/2 =
  3. 3.1/3 − 1/4 =
  4. 4.3/4 + 1/6 =
  5. 5.5/7 − 1/4 =
  6. 6.3/6 + 5/12 =
  7. 7.6/12 − 2/9 =
  8. 8.3/8 + 6/8 =
  9. 9.4/5 + 1/4 =
  10. 10.9/12 + 1/6 =
  11. 11.7/8 + 7/12 =
  12. 12.6/8 + 1/5 =
  13. 13.5/8 − 1/2 =
  14. 14.1/4 + 5/6 =
  15. 15.5/6 + 4/8 =
  16. 16.1/5 + 9/12 =
  17. 17.8/9 + 2/3 =
  18. 18.4/8 + 1/8 =
  19. 19.4/11 − 1/3 =
  20. 20.3/4 + 3/4 =
  21. 21.2/6 + 6/11 =
  22. 22.1/7 + 1/2 =
  23. 23.1/2 + 7/11 =
  24. 24.6/7 − 1/9 =
  25. 25.5/8 + 1/2 =
  26. 26.3/12 − 1/7 =
  27. 27.1/10 + 10/12 =
  28. 28.3/4 + 3/4 =
  29. 29.5/9 + 1/12 =
  30. 30.1/5 + 1/2 =
  31. 31.10/12 − 5/8 =
  32. 32.5/8 − 3/10 =
  33. 33.8/9 + 4/11 =
  34. 34.2/6 + 9/12 =
  35. 35.2/4 − 2/11 =
  36. 36.3/4 + 1/2 =
  37. 37.2/3 + 4/12 =
  38. 38.2/3 + 5/6 =
  39. 39.3/11 + 1/3 =
  40. 40.8/11 − 3/7 =

Answer key

  1. 1
  2. 1/4
  3. 1/12
  4. 11/12
  5. 13/28
  6. 11/12
  7. 5/18
  8. 9/8
  9. 21/20
  10. 11/12
  11. 35/24
  12. 19/20
  13. 1/8
  14. 13/12
  15. 4/3
  16. 19/20
  17. 14/9
  18. 5/8
  19. 1/33
  20. 3/2
  21. 29/33
  22. 9/14
  23. 25/22
  24. 47/63
  25. 9/8
  26. 3/28
  27. 14/15
  28. 3/2
  29. 23/36
  30. 7/10
  31. 5/24
  32. 13/40
  33. 124/99
  34. 13/12
  35. 7/22
  36. 5/4
  37. 1
  38. 3/2
  39. 20/33
  40. 23/77

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