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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 170 · 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. 1.2/3 − 1/8 =
  2. 2.1/2 − 3/8 =
  3. 3.1/2 − 1/3 =
  4. 4.2/4 + 1/4 =
  5. 5.7/9 + 5/9 =
  6. 6.1/2 + 6/7 =
  7. 7.5/6 − 4/6 =
  8. 8.2/3 + 5/10 =
  9. 9.1/9 + 2/10 =
  10. 10.1/11 + 6/9 =
  11. 11.6/10 − 1/7 =
  12. 12.1/2 + 1/2 =
  13. 13.7/8 − 1/7 =
  14. 14.3/12 + 1/11 =
  15. 15.3/11 + 5/6 =
  16. 16.6/12 + 2/11 =
  17. 17.2/4 + 11/12 =
  18. 18.3/12 − 2/9 =
  19. 19.1/5 + 6/7 =
  20. 20.1/2 − 3/9 =
  21. 21.4/9 + 6/10 =
  22. 22.1/6 + 1/9 =
  23. 23.7/8 − 4/12 =
  24. 24.8/11 − 4/9 =
  25. 25.4/6 + 1/2 =
  26. 26.4/8 − 1/3 =
  27. 27.5/7 + 1/4 =
  28. 28.1/2 + 3/9 =
  29. 29.1/3 + 2/3 =
  30. 30.2/4 − 1/3 =
  31. 31.3/10 + 1/3 =
  32. 32.4/5 + 8/9 =
  33. 33.2/10 + 4/6 =
  34. 34.4/12 + 4/5 =
  35. 35.2/7 + 1/2 =
  36. 36.7/11 − 1/2 =
  37. 37.2/4 + 6/10 =
  38. 38.7/11 + 7/11 =
  39. 39.1/2 + 1/2 =
  40. 40.2/5 + 4/10 =

Answer key

  1. 13/24
  2. 1/8
  3. 1/6
  4. 3/4
  5. 4/3
  6. 19/14
  7. 1/6
  8. 7/6
  9. 14/45
  10. 25/33
  11. 16/35
  12. 1
  13. 41/56
  14. 15/44
  15. 73/66
  16. 15/22
  17. 17/12
  18. 1/36
  19. 37/35
  20. 1/6
  21. 47/45
  22. 5/18
  23. 13/24
  24. 28/99
  25. 7/6
  26. 1/6
  27. 27/28
  28. 5/6
  29. 1
  30. 1/6
  31. 19/30
  32. 76/45
  33. 13/15
  34. 17/15
  35. 11/14
  36. 3/22
  37. 11/10
  38. 14/11
  39. 1
  40. 4/5

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