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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 841 · 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. 1.2/7 + 2/6 =
  2. 2.2/5 + 1/8 =
  3. 3.9/12 + 3/5 =
  4. 4.8/12 − 1/2 =
  5. 5.1/9 + 2/4 =
  6. 6.1/3 + 1/3 =
  7. 7.1/2 − 5/11 =
  8. 8.1/8 + 5/7 =
  9. 9.2/3 + 1/2 =
  10. 10.3/4 + 2/5 =
  11. 11.7/12 − 1/5 =
  12. 12.3/6 + 1/2 =
  13. 13.2/11 + 8/9 =
  14. 14.1/10 + 2/12 =
  15. 15.1/6 + 3/4 =
  16. 16.7/10 − 1/4 =
  17. 17.1/6 + 1/2 =
  18. 18.2/4 + 2/3 =
  19. 19.1/2 + 2/6 =
  20. 20.1/2 − 2/6 =
  21. 21.9/12 + 1/3 =
  22. 22.2/5 + 1/5 =
  23. 23.6/12 + 5/8 =
  24. 24.4/5 − 8/11 =
  25. 25.1/9 + 5/9 =
  26. 26.5/8 − 2/5 =
  27. 27.2/8 + 3/8 =
  28. 28.1/5 + 4/7 =
  29. 29.2/3 + 3/5 =
  30. 30.5/7 + 5/8 =
  31. 31.3/6 + 1/3 =
  32. 32.3/11 + 2/4 =
  33. 33.2/3 + 4/7 =
  34. 34.7/9 − 3/8 =
  35. 35.3/4 − 1/5 =
  36. 36.1/2 + 5/10 =
  37. 37.1/9 + 6/7 =
  38. 38.1/2 + 2/6 =
  39. 39.5/9 + 2/4 =
  40. 40.9/12 − 1/4 =

Answer key

  1. 13/21
  2. 21/40
  3. 27/20
  4. 1/6
  5. 11/18
  6. 2/3
  7. 1/22
  8. 47/56
  9. 7/6
  10. 23/20
  11. 23/60
  12. 1
  13. 106/99
  14. 4/15
  15. 11/12
  16. 9/20
  17. 2/3
  18. 7/6
  19. 5/6
  20. 1/6
  21. 13/12
  22. 3/5
  23. 9/8
  24. 4/55
  25. 2/3
  26. 9/40
  27. 5/8
  28. 27/35
  29. 19/15
  30. 75/56
  31. 5/6
  32. 17/22
  33. 26/21
  34. 29/72
  35. 11/20
  36. 1
  37. 61/63
  38. 5/6
  39. 19/18
  40. 1/2

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