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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 851 · 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. 1.10/12 + 3/4 =
  2. 2.2/3 + 1/2 =
  3. 3.1/2 + 1/11 =
  4. 4.3/12 − 2/11 =
  5. 5.4/9 − 3/11 =
  6. 6.10/11 + 2/5 =
  7. 7.3/4 − 6/10 =
  8. 8.6/8 + 6/8 =
  9. 9.6/10 + 1/7 =
  10. 10.10/11 − 3/7 =
  11. 11.2/6 + 8/12 =
  12. 12.1/2 − 1/12 =
  13. 13.3/4 + 1/5 =
  14. 14.1/2 + 1/2 =
  15. 15.4/6 + 1/2 =
  16. 16.2/5 − 1/12 =
  17. 17.2/6 + 11/12 =
  18. 18.5/11 + 3/5 =
  19. 19.1/2 − 1/7 =
  20. 20.1/4 − 1/5 =
  21. 21.1/2 − 2/9 =
  22. 22.6/9 − 1/3 =
  23. 23.3/6 + 2/3 =
  24. 24.2/8 − 1/5 =
  25. 25.2/5 − 1/5 =
  26. 26.1/11 + 2/11 =
  27. 27.3/11 + 2/4 =
  28. 28.1/2 + 4/8 =
  29. 29.8/10 − 2/3 =
  30. 30.6/8 + 2/3 =
  31. 31.1/2 + 6/8 =
  32. 32.6/7 + 1/2 =
  33. 33.5/12 − 3/9 =
  34. 34.11/12 − 4/11 =
  35. 35.4/5 − 5/8 =
  36. 36.1/3 − 1/5 =
  37. 37.1/9 + 11/12 =
  38. 38.5/7 − 1/10 =
  39. 39.1/2 − 3/10 =
  40. 40.4/9 − 3/8 =

Answer key

  1. 19/12
  2. 7/6
  3. 13/22
  4. 3/44
  5. 17/99
  6. 72/55
  7. 3/20
  8. 3/2
  9. 26/35
  10. 37/77
  11. 1
  12. 5/12
  13. 19/20
  14. 1
  15. 7/6
  16. 19/60
  17. 5/4
  18. 58/55
  19. 5/14
  20. 1/20
  21. 5/18
  22. 1/3
  23. 7/6
  24. 1/20
  25. 1/5
  26. 3/11
  27. 17/22
  28. 1
  29. 2/15
  30. 17/12
  31. 5/4
  32. 19/14
  33. 1/12
  34. 73/132
  35. 7/40
  36. 2/15
  37. 37/36
  38. 43/70
  39. 1/5
  40. 5/72

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