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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 587 · 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. 1.2/4 + 7/9 =
  2. 2.1/3 + 6/7 =
  3. 3.7/12 − 5/11 =
  4. 4.2/3 − 2/5 =
  5. 5.5/7 + 7/9 =
  6. 6.1/2 + 3/6 =
  7. 7.1/2 + 1/11 =
  8. 8.3/4 − 1/7 =
  9. 9.3/5 − 5/9 =
  10. 10.1/2 + 5/6 =
  11. 11.1/2 + 1/12 =
  12. 12.1/2 + 2/10 =
  13. 13.2/12 + 1/6 =
  14. 14.3/6 + 10/11 =
  15. 15.1/3 − 1/4 =
  16. 16.8/11 + 8/10 =
  17. 17.4/8 + 3/6 =
  18. 18.2/8 + 3/4 =
  19. 19.1/3 − 1/8 =
  20. 20.4/6 − 3/10 =
  21. 21.4/12 − 1/5 =
  22. 22.3/5 + 1/2 =
  23. 23.2/5 + 3/10 =
  24. 24.8/9 − 2/5 =
  25. 25.3/4 + 3/5 =
  26. 26.2/6 + 1/3 =
  27. 27.1/6 + 2/10 =
  28. 28.5/12 + 8/9 =
  29. 29.1/2 + 1/11 =
  30. 30.5/7 − 2/9 =
  31. 31.2/6 + 4/10 =
  32. 32.2/3 + 2/3 =
  33. 33.4/5 − 2/9 =
  34. 34.1/2 + 2/9 =
  35. 35.3/5 − 4/8 =
  36. 36.2/11 − 1/6 =
  37. 37.1/12 + 1/8 =
  38. 38.2/3 + 5/9 =
  39. 39.7/8 − 3/7 =
  40. 40.3/5 + 1/2 =

Answer key

  1. 23/18
  2. 25/21
  3. 17/132
  4. 4/15
  5. 94/63
  6. 1
  7. 13/22
  8. 17/28
  9. 2/45
  10. 4/3
  11. 7/12
  12. 7/10
  13. 1/3
  14. 31/22
  15. 1/12
  16. 84/55
  17. 1
  18. 1
  19. 5/24
  20. 11/30
  21. 2/15
  22. 11/10
  23. 7/10
  24. 22/45
  25. 27/20
  26. 2/3
  27. 11/30
  28. 47/36
  29. 13/22
  30. 31/63
  31. 11/15
  32. 4/3
  33. 26/45
  34. 13/18
  35. 1/10
  36. 1/66
  37. 5/24
  38. 11/9
  39. 25/56
  40. 11/10

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