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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 954 · 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. 1.9/10 + 2/8 =
  2. 2.1/4 + 2/5 =
  3. 3.1/2 + 1/2 =
  4. 4.3/10 + 2/5 =
  5. 5.3/6 − 1/3 =
  6. 6.1/4 + 1/4 =
  7. 7.3/12 + 1/4 =
  8. 8.4/8 − 1/3 =
  9. 9.1/3 + 1/2 =
  10. 10.11/12 + 3/10 =
  11. 11.1/3 − 1/9 =
  12. 12.7/8 − 1/2 =
  13. 13.5/7 + 5/11 =
  14. 14.4/5 + 7/8 =
  15. 15.2/7 + 1/4 =
  16. 16.2/3 + 2/3 =
  17. 17.1/4 + 5/7 =
  18. 18.5/12 − 2/11 =
  19. 19.1/11 + 1/3 =
  20. 20.4/12 + 4/7 =
  21. 21.2/4 + 2/5 =
  22. 22.2/6 + 4/12 =
  23. 23.1/5 + 6/9 =
  24. 24.2/3 − 2/4 =
  25. 25.2/9 − 1/5 =
  26. 26.6/12 − 2/6 =
  27. 27.4/9 + 9/12 =
  28. 28.9/12 + 4/8 =
  29. 29.4/6 − 4/8 =
  30. 30.2/4 + 2/5 =
  31. 31.7/12 − 3/12 =
  32. 32.5/8 − 2/8 =
  33. 33.2/3 + 1/5 =
  34. 34.5/7 − 6/9 =
  35. 35.4/11 − 1/3 =
  36. 36.3/7 + 1/2 =
  37. 37.1/6 + 4/9 =
  38. 38.1/2 − 2/5 =
  39. 39.4/5 + 4/5 =
  40. 40.2/7 + 2/3 =

Answer key

  1. 23/20
  2. 13/20
  3. 1
  4. 7/10
  5. 1/6
  6. 1/2
  7. 1/2
  8. 1/6
  9. 5/6
  10. 73/60
  11. 2/9
  12. 3/8
  13. 90/77
  14. 67/40
  15. 15/28
  16. 4/3
  17. 27/28
  18. 31/132
  19. 14/33
  20. 19/21
  21. 9/10
  22. 2/3
  23. 13/15
  24. 1/6
  25. 1/45
  26. 1/6
  27. 43/36
  28. 5/4
  29. 1/6
  30. 9/10
  31. 1/3
  32. 3/8
  33. 13/15
  34. 1/21
  35. 1/33
  36. 13/14
  37. 11/18
  38. 1/10
  39. 8/5
  40. 20/21

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