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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 394 · 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. 1.3/9 + 2/3 =
  2. 2.8/9 − 10/12 =
  3. 3.1/3 − 3/12 =
  4. 4.8/11 − 4/7 =
  5. 5.1/2 + 1/3 =
  6. 6.2/3 − 4/7 =
  7. 7.7/9 − 4/10 =
  8. 8.3/8 + 8/12 =
  9. 9.2/4 + 4/6 =
  10. 10.3/5 + 7/8 =
  11. 11.6/9 + 2/3 =
  12. 12.3/12 + 3/8 =
  13. 13.4/5 − 1/10 =
  14. 14.1/3 + 2/4 =
  15. 15.4/8 + 2/4 =
  16. 16.1/6 + 1/2 =
  17. 17.3/4 + 1/12 =
  18. 18.4/9 + 1/2 =
  19. 19.4/7 + 11/12 =
  20. 20.9/12 − 1/10 =
  21. 21.7/10 + 1/2 =
  22. 22.6/7 + 8/9 =
  23. 23.1/3 + 6/10 =
  24. 24.1/3 + 1/3 =
  25. 25.7/11 − 1/2 =
  26. 26.2/7 + 5/12 =
  27. 27.2/8 + 8/9 =
  28. 28.4/6 + 1/8 =
  29. 29.1/2 + 6/11 =
  30. 30.7/11 + 10/11 =
  31. 31.2/8 − 2/11 =
  32. 32.2/3 + 6/12 =
  33. 33.3/12 + 1/2 =
  34. 34.5/10 + 2/4 =
  35. 35.1/5 + 2/3 =
  36. 36.1/2 + 4/9 =
  37. 37.1/7 + 4/8 =
  38. 38.1/9 + 6/12 =
  39. 39.3/12 + 3/5 =
  40. 40.8/9 − 5/7 =

Answer key

  1. 1
  2. 1/18
  3. 1/12
  4. 12/77
  5. 5/6
  6. 2/21
  7. 17/45
  8. 25/24
  9. 7/6
  10. 59/40
  11. 4/3
  12. 5/8
  13. 7/10
  14. 5/6
  15. 1
  16. 2/3
  17. 5/6
  18. 17/18
  19. 125/84
  20. 13/20
  21. 6/5
  22. 110/63
  23. 14/15
  24. 2/3
  25. 3/22
  26. 59/84
  27. 41/36
  28. 19/24
  29. 23/22
  30. 17/11
  31. 3/44
  32. 7/6
  33. 3/4
  34. 1
  35. 13/15
  36. 17/18
  37. 9/14
  38. 11/18
  39. 17/20
  40. 11/63

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