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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 85 · 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. 1.11/12 + 2/3 =
  2. 2.8/10 − 1/4 =
  3. 3.1/5 + 1/9 =
  4. 4.4/5 − 5/7 =
  5. 5.1/12 + 3/6 =
  6. 6.2/4 + 6/7 =
  7. 7.2/10 + 1/5 =
  8. 8.2/3 − 1/3 =
  9. 9.2/3 + 5/9 =
  10. 10.9/10 − 1/10 =
  11. 11.4/12 + 5/8 =
  12. 12.3/8 + 3/5 =
  13. 13.5/10 − 1/10 =
  14. 14.1/4 + 1/3 =
  15. 15.2/5 − 3/9 =
  16. 16.1/3 + 8/12 =
  17. 17.3/8 + 1/3 =
  18. 18.2/9 + 4/12 =
  19. 19.6/8 + 7/9 =
  20. 20.1/2 + 5/9 =
  21. 21.3/6 − 3/8 =
  22. 22.2/9 − 1/10 =
  23. 23.1/6 + 1/3 =
  24. 24.8/12 + 4/5 =
  25. 25.5/6 + 2/4 =
  26. 26.1/4 + 1/5 =
  27. 27.6/7 + 1/3 =
  28. 28.1/3 + 3/7 =
  29. 29.3/9 + 3/5 =
  30. 30.1/3 + 1/2 =
  31. 31.2/6 + 10/12 =
  32. 32.5/10 − 2/12 =
  33. 33.3/7 + 2/4 =
  34. 34.1/3 − 1/4 =
  35. 35.4/5 − 1/2 =
  36. 36.3/12 + 7/9 =
  37. 37.2/8 + 4/11 =
  38. 38.7/12 − 5/9 =
  39. 39.1/9 + 3/4 =
  40. 40.1/2 + 8/10 =

Answer key

  1. 19/12
  2. 11/20
  3. 14/45
  4. 3/35
  5. 7/12
  6. 19/14
  7. 2/5
  8. 1/3
  9. 11/9
  10. 4/5
  11. 23/24
  12. 39/40
  13. 2/5
  14. 7/12
  15. 1/15
  16. 1
  17. 17/24
  18. 5/9
  19. 55/36
  20. 19/18
  21. 1/8
  22. 11/90
  23. 1/2
  24. 22/15
  25. 4/3
  26. 9/20
  27. 25/21
  28. 16/21
  29. 14/15
  30. 5/6
  31. 7/6
  32. 1/3
  33. 13/14
  34. 1/12
  35. 3/10
  36. 37/36
  37. 27/44
  38. 1/36
  39. 31/36
  40. 13/10

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