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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 737 · 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. 1.1/2 − 3/12 =
  2. 2.1/2 + 1/7 =
  3. 3.2/5 + 2/5 =
  4. 4.6/7 + 2/3 =
  5. 5.9/11 − 1/3 =
  6. 6.9/10 − 1/7 =
  7. 7.7/11 + 4/7 =
  8. 8.1/11 + 1/11 =
  9. 9.3/6 + 1/2 =
  10. 10.1/2 − 3/9 =
  11. 11.2/3 − 6/10 =
  12. 12.5/6 + 1/11 =
  13. 13.1/11 + 1/9 =
  14. 14.2/12 + 4/7 =
  15. 15.3/6 + 1/2 =
  16. 16.8/10 − 3/6 =
  17. 17.2/3 + 3/4 =
  18. 18.3/9 + 2/3 =
  19. 19.4/5 + 1/2 =
  20. 20.2/3 + 6/7 =
  21. 21.2/4 + 2/4 =
  22. 22.1/2 + 1/12 =
  23. 23.2/3 − 6/11 =
  24. 24.5/9 + 9/11 =
  25. 25.5/9 + 4/12 =
  26. 26.8/10 + 1/4 =
  27. 27.6/7 + 1/3 =
  28. 28.2/8 + 5/12 =
  29. 29.2/4 + 1/5 =
  30. 30.1/6 + 3/5 =
  31. 31.3/8 − 1/3 =
  32. 32.1/3 + 7/9 =
  33. 33.1/3 + 1/4 =
  34. 34.1/2 + 1/3 =
  35. 35.1/2 + 6/8 =
  36. 36.7/8 − 2/5 =
  37. 37.1/2 + 9/12 =
  38. 38.1/3 + 3/9 =
  39. 39.1/11 + 3/4 =
  40. 40.6/9 − 3/10 =

Answer key

  1. 1/4
  2. 9/14
  3. 4/5
  4. 32/21
  5. 16/33
  6. 53/70
  7. 93/77
  8. 2/11
  9. 1
  10. 1/6
  11. 1/15
  12. 61/66
  13. 20/99
  14. 31/42
  15. 1
  16. 3/10
  17. 17/12
  18. 1
  19. 13/10
  20. 32/21
  21. 1
  22. 7/12
  23. 4/33
  24. 136/99
  25. 8/9
  26. 21/20
  27. 25/21
  28. 2/3
  29. 7/10
  30. 23/30
  31. 1/24
  32. 10/9
  33. 7/12
  34. 5/6
  35. 5/4
  36. 19/40
  37. 5/4
  38. 2/3
  39. 37/44
  40. 11/30

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