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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 101 · 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 + 1/10 =
  2. 2.5/10 − 1/4 =
  3. 3.1/3 − 1/10 =
  4. 4.9/11 + 1/2 =
  5. 5.1/3 + 5/6 =
  6. 6.3/5 + 2/7 =
  7. 7.9/10 + 10/11 =
  8. 8.4/5 − 6/8 =
  9. 9.4/5 − 2/6 =
  10. 10.2/3 − 1/2 =
  11. 11.3/10 + 1/7 =
  12. 12.9/12 − 1/7 =
  13. 13.3/8 + 4/5 =
  14. 14.1/3 − 2/11 =
  15. 15.3/4 + 8/9 =
  16. 16.3/6 + 4/7 =
  17. 17.2/5 + 2/4 =
  18. 18.2/5 + 6/10 =
  19. 19.5/7 − 2/10 =
  20. 20.1/2 − 1/7 =
  21. 21.2/5 + 8/10 =
  22. 22.10/11 + 1/4 =
  23. 23.2/3 + 7/9 =
  24. 24.3/8 + 2/3 =
  25. 25.1/2 + 1/2 =
  26. 26.8/12 − 1/3 =
  27. 27.2/11 + 1/2 =
  28. 28.3/4 − 1/4 =
  29. 29.2/7 + 5/7 =
  30. 30.2/3 + 2/3 =
  31. 31.2/3 + 4/9 =
  32. 32.3/4 + 7/9 =
  33. 33.2/11 + 7/10 =
  34. 34.7/8 + 3/8 =
  35. 35.1/2 + 10/11 =
  36. 36.3/4 − 7/11 =
  37. 37.1/2 + 9/11 =
  38. 38.3/4 + 11/12 =
  39. 39.9/12 − 1/6 =
  40. 40.1/4 + 4/7 =

Answer key

  1. 23/30
  2. 1/4
  3. 7/30
  4. 29/22
  5. 7/6
  6. 31/35
  7. 199/110
  8. 1/20
  9. 7/15
  10. 1/6
  11. 31/70
  12. 17/28
  13. 47/40
  14. 5/33
  15. 59/36
  16. 15/14
  17. 9/10
  18. 1
  19. 18/35
  20. 5/14
  21. 6/5
  22. 51/44
  23. 13/9
  24. 25/24
  25. 1
  26. 1/3
  27. 15/22
  28. 1/2
  29. 1
  30. 4/3
  31. 10/9
  32. 55/36
  33. 97/110
  34. 5/4
  35. 31/22
  36. 5/44
  37. 29/22
  38. 5/3
  39. 7/12
  40. 23/28

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