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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 668 · 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. 1.7/8 + 1/4 =
  2. 2.4/12 + 1/5 =
  3. 3.9/10 − 6/8 =
  4. 4.10/12 + 2/9 =
  5. 5.3/6 + 6/7 =
  6. 6.2/3 + 7/9 =
  7. 7.1/3 + 1/2 =
  8. 8.1/2 − 1/4 =
  9. 9.10/12 − 2/3 =
  10. 10.7/9 + 8/11 =
  11. 11.2/8 + 11/12 =
  12. 12.6/12 + 1/9 =
  13. 13.5/8 + 7/11 =
  14. 14.2/6 + 1/6 =
  15. 15.2/4 − 1/10 =
  16. 16.9/10 − 3/6 =
  17. 17.1/4 + 2/4 =
  18. 18.3/5 − 1/3 =
  19. 19.1/4 + 1/5 =
  20. 20.1/2 + 6/9 =
  21. 21.2/3 + 1/2 =
  22. 22.2/4 − 4/12 =
  23. 23.1/2 + 1/2 =
  24. 24.4/7 − 3/8 =
  25. 25.11/12 + 2/4 =
  26. 26.3/4 + 2/7 =
  27. 27.9/11 + 1/3 =
  28. 28.1/3 + 1/2 =
  29. 29.4/9 − 1/3 =
  30. 30.1/2 − 1/4 =
  31. 31.7/8 − 4/8 =
  32. 32.2/4 + 4/9 =
  33. 33.8/11 − 6/11 =
  34. 34.4/5 − 2/3 =
  35. 35.2/3 + 7/11 =
  36. 36.2/5 + 4/9 =
  37. 37.9/12 + 6/9 =
  38. 38.2/7 + 2/3 =
  39. 39.1/2 + 1/2 =
  40. 40.1/2 + 1/6 =

Answer key

  1. 9/8
  2. 8/15
  3. 3/20
  4. 19/18
  5. 19/14
  6. 13/9
  7. 5/6
  8. 1/4
  9. 1/6
  10. 149/99
  11. 7/6
  12. 11/18
  13. 111/88
  14. 1/2
  15. 2/5
  16. 2/5
  17. 3/4
  18. 4/15
  19. 9/20
  20. 7/6
  21. 7/6
  22. 1/6
  23. 1
  24. 11/56
  25. 17/12
  26. 29/28
  27. 38/33
  28. 5/6
  29. 1/9
  30. 1/4
  31. 3/8
  32. 17/18
  33. 2/11
  34. 2/15
  35. 43/33
  36. 38/45
  37. 17/12
  38. 20/21
  39. 1
  40. 2/3

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