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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 53 · 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. 1.3/4 + 2/12 =
  2. 2.4/9 + 1/4 =
  3. 3.1/6 + 4/8 =
  4. 4.4/10 − 1/3 =
  5. 5.9/12 + 2/9 =
  6. 6.1/2 − 3/11 =
  7. 7.9/10 − 4/7 =
  8. 8.1/6 + 1/8 =
  9. 9.4/12 − 2/9 =
  10. 10.1/2 + 4/5 =
  11. 11.1/7 + 1/2 =
  12. 12.4/7 − 6/11 =
  13. 13.4/8 − 4/10 =
  14. 14.7/10 + 1/2 =
  15. 15.7/10 + 2/5 =
  16. 16.1/4 + 1/2 =
  17. 17.2/5 − 2/9 =
  18. 18.3/5 + 7/10 =
  19. 19.1/2 + 11/12 =
  20. 20.10/12 + 1/3 =
  21. 21.2/3 + 3/4 =
  22. 22.3/4 − 2/3 =
  23. 23.1/3 + 1/2 =
  24. 24.2/6 − 3/11 =
  25. 25.1/2 + 2/8 =
  26. 26.2/3 + 2/4 =
  27. 27.2/9 − 1/5 =
  28. 28.1/3 + 2/5 =
  29. 29.1/2 − 1/11 =
  30. 30.6/8 + 2/4 =
  31. 31.1/8 + 2/11 =
  32. 32.7/8 + 1/2 =
  33. 33.7/12 + 1/12 =
  34. 34.2/3 − 1/11 =
  35. 35.8/11 + 1/2 =
  36. 36.5/10 − 2/5 =
  37. 37.3/4 − 5/8 =
  38. 38.5/10 + 7/9 =
  39. 39.1/2 + 2/10 =
  40. 40.5/7 − 1/7 =

Answer key

  1. 11/12
  2. 25/36
  3. 2/3
  4. 1/15
  5. 35/36
  6. 5/22
  7. 23/70
  8. 7/24
  9. 1/9
  10. 13/10
  11. 9/14
  12. 2/77
  13. 1/10
  14. 6/5
  15. 11/10
  16. 3/4
  17. 8/45
  18. 13/10
  19. 17/12
  20. 7/6
  21. 17/12
  22. 1/12
  23. 5/6
  24. 2/33
  25. 3/4
  26. 7/6
  27. 1/45
  28. 11/15
  29. 9/22
  30. 5/4
  31. 27/88
  32. 11/8
  33. 2/3
  34. 19/33
  35. 27/22
  36. 1/10
  37. 1/8
  38. 23/18
  39. 7/10
  40. 4/7

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