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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 977 · 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. 1.1/4 − 1/7 =
  2. 2.3/5 − 2/4 =
  3. 3.7/9 − 2/3 =
  4. 4.7/10 − 2/4 =
  5. 5.6/7 − 3/4 =
  6. 6.8/9 + 2/4 =
  7. 7.3/5 − 1/5 =
  8. 8.1/10 + 2/6 =
  9. 9.2/3 − 2/8 =
  10. 10.4/6 + 3/4 =
  11. 11.1/2 − 5/12 =
  12. 12.1/9 + 1/5 =
  13. 13.3/11 − 1/4 =
  14. 14.1/3 + 9/10 =
  15. 15.4/11 + 3/9 =
  16. 16.1/6 + 3/4 =
  17. 17.3/4 − 3/8 =
  18. 18.10/12 − 2/10 =
  19. 19.2/11 + 10/12 =
  20. 20.3/6 + 2/4 =
  21. 21.3/4 − 5/7 =
  22. 22.6/11 + 1/2 =
  23. 23.3/4 − 1/4 =
  24. 24.3/6 + 4/6 =
  25. 25.5/8 − 2/5 =
  26. 26.2/8 + 2/3 =
  27. 27.1/3 + 4/6 =
  28. 28.8/11 + 4/12 =
  29. 29.2/9 + 7/10 =
  30. 30.1/2 − 2/12 =
  31. 31.8/9 − 1/3 =
  32. 32.1/2 − 1/7 =
  33. 33.1/5 + 6/10 =
  34. 34.3/4 + 1/2 =
  35. 35.2/3 − 1/2 =
  36. 36.2/5 + 3/12 =
  37. 37.3/4 − 2/4 =
  38. 38.1/2 − 3/9 =
  39. 39.4/5 + 4/7 =
  40. 40.6/8 − 6/10 =

Answer key

  1. 3/28
  2. 1/10
  3. 1/9
  4. 1/5
  5. 3/28
  6. 25/18
  7. 2/5
  8. 13/30
  9. 5/12
  10. 17/12
  11. 1/12
  12. 14/45
  13. 1/44
  14. 37/30
  15. 23/33
  16. 11/12
  17. 3/8
  18. 19/30
  19. 67/66
  20. 1
  21. 1/28
  22. 23/22
  23. 1/2
  24. 7/6
  25. 9/40
  26. 11/12
  27. 1
  28. 35/33
  29. 83/90
  30. 1/3
  31. 5/9
  32. 5/14
  33. 4/5
  34. 5/4
  35. 1/6
  36. 13/20
  37. 1/4
  38. 1/6
  39. 48/35
  40. 3/20

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