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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 944 · 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. 1.6/7 − 2/8 =
  2. 2.1/2 + 9/12 =
  3. 3.1/3 + 3/4 =
  4. 4.2/3 + 3/5 =
  5. 5.4/11 − 3/10 =
  6. 6.7/9 + 8/9 =
  7. 7.3/4 − 4/6 =
  8. 8.2/4 − 1/7 =
  9. 9.4/9 − 3/10 =
  10. 10.6/9 − 1/2 =
  11. 11.2/10 + 1/4 =
  12. 12.1/8 + 7/10 =
  13. 13.1/9 + 2/12 =
  14. 14.1/2 + 9/12 =
  15. 15.1/4 + 4/7 =
  16. 16.4/5 + 3/4 =
  17. 17.9/10 + 8/9 =
  18. 18.5/7 − 1/2 =
  19. 19.8/10 + 9/10 =
  20. 20.5/8 + 2/3 =
  21. 21.1/2 − 2/11 =
  22. 22.1/2 + 4/6 =
  23. 23.4/9 + 2/8 =
  24. 24.1/2 + 1/2 =
  25. 25.1/2 − 2/10 =
  26. 26.2/4 + 11/12 =
  27. 27.5/8 − 1/2 =
  28. 28.6/10 + 2/12 =
  29. 29.3/4 + 7/8 =
  30. 30.1/3 + 1/7 =
  31. 31.2/3 + 9/10 =
  32. 32.1/2 + 2/9 =
  33. 33.8/11 + 1/2 =
  34. 34.9/11 − 1/3 =
  35. 35.4/12 + 2/3 =
  36. 36.4/6 − 1/4 =
  37. 37.1/3 + 8/10 =
  38. 38.3/4 − 1/9 =
  39. 39.4/8 + 2/4 =
  40. 40.4/5 − 2/4 =

Answer key

  1. 17/28
  2. 5/4
  3. 13/12
  4. 19/15
  5. 7/110
  6. 5/3
  7. 1/12
  8. 5/14
  9. 13/90
  10. 1/6
  11. 9/20
  12. 33/40
  13. 5/18
  14. 5/4
  15. 23/28
  16. 31/20
  17. 161/90
  18. 3/14
  19. 17/10
  20. 31/24
  21. 7/22
  22. 7/6
  23. 25/36
  24. 1
  25. 3/10
  26. 17/12
  27. 1/8
  28. 23/30
  29. 13/8
  30. 10/21
  31. 47/30
  32. 13/18
  33. 27/22
  34. 16/33
  35. 1
  36. 5/12
  37. 17/15
  38. 23/36
  39. 1
  40. 3/10

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