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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 909 · 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 − 1/2 =
  2. 2.7/9 + 3/5 =
  3. 3.9/11 − 5/12 =
  4. 4.6/7 + 8/10 =
  5. 5.4/8 − 4/12 =
  6. 6.5/9 + 5/10 =
  7. 7.1/3 + 1/4 =
  8. 8.3/4 + 7/9 =
  9. 9.1/4 − 2/11 =
  10. 10.3/4 − 3/12 =
  11. 11.4/5 + 2/4 =
  12. 12.1/2 − 2/8 =
  13. 13.1/8 + 2/4 =
  14. 14.8/10 − 1/3 =
  15. 15.9/10 − 3/9 =
  16. 16.4/5 − 1/5 =
  17. 17.3/7 + 1/6 =
  18. 18.1/3 − 3/11 =
  19. 19.2/7 + 6/11 =
  20. 20.4/9 + 2/10 =
  21. 21.4/8 + 8/12 =
  22. 22.5/10 − 1/4 =
  23. 23.1/2 + 1/5 =
  24. 24.3/9 + 1/9 =
  25. 25.2/3 + 1/10 =
  26. 26.3/8 + 1/2 =
  27. 27.1/3 + 1/2 =
  28. 28.1/2 + 1/10 =
  29. 29.3/5 − 1/4 =
  30. 30.2/7 + 3/6 =
  31. 31.2/7 + 1/7 =
  32. 32.1/8 + 5/10 =
  33. 33.2/4 + 4/7 =
  34. 34.1/2 + 5/7 =
  35. 35.4/5 + 2/4 =
  36. 36.9/11 + 5/12 =
  37. 37.1/4 + 2/4 =
  38. 38.2/3 + 8/12 =
  39. 39.5/9 + 3/6 =
  40. 40.1/4 + 8/10 =

Answer key

  1. 2/5
  2. 62/45
  3. 53/132
  4. 58/35
  5. 1/6
  6. 19/18
  7. 7/12
  8. 55/36
  9. 3/44
  10. 1/2
  11. 13/10
  12. 1/4
  13. 5/8
  14. 7/15
  15. 17/30
  16. 3/5
  17. 25/42
  18. 2/33
  19. 64/77
  20. 29/45
  21. 7/6
  22. 1/4
  23. 7/10
  24. 4/9
  25. 23/30
  26. 7/8
  27. 5/6
  28. 3/5
  29. 7/20
  30. 11/14
  31. 3/7
  32. 5/8
  33. 15/14
  34. 17/14
  35. 13/10
  36. 163/132
  37. 3/4
  38. 4/3
  39. 19/18
  40. 21/20

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