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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 650 · 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. 1.3/6 − 1/9 =
  2. 2.1/5 + 5/11 =
  3. 3.1/11 + 3/8 =
  4. 4.4/7 − 2/6 =
  5. 5.5/12 + 8/12 =
  6. 6.1/12 + 1/3 =
  7. 7.3/5 − 2/5 =
  8. 8.3/9 + 5/8 =
  9. 9.2/7 + 10/11 =
  10. 10.1/4 − 2/10 =
  11. 11.1/12 + 1/2 =
  12. 12.1/3 − 1/4 =
  13. 13.2/3 + 6/11 =
  14. 14.1/3 + 1/3 =
  15. 15.5/7 − 1/2 =
  16. 16.5/12 + 1/3 =
  17. 17.1/4 + 5/6 =
  18. 18.2/11 + 1/7 =
  19. 19.2/4 + 8/11 =
  20. 20.2/5 + 2/8 =
  21. 21.1/2 + 6/9 =
  22. 22.2/3 + 6/9 =
  23. 23.3/4 + 1/4 =
  24. 24.3/10 − 3/11 =
  25. 25.3/12 + 8/10 =
  26. 26.1/11 + 2/5 =
  27. 27.2/3 + 1/4 =
  28. 28.7/8 + 10/12 =
  29. 29.1/4 + 6/8 =
  30. 30.1/2 + 3/10 =
  31. 31.1/4 + 1/8 =
  32. 32.2/11 + 3/12 =
  33. 33.1/3 + 2/8 =
  34. 34.4/5 − 1/7 =
  35. 35.7/11 − 3/6 =
  36. 36.4/5 + 2/7 =
  37. 37.1/2 + 1/3 =
  38. 38.1/11 − 1/12 =
  39. 39.1/2 − 1/6 =
  40. 40.1/9 + 3/5 =

Answer key

  1. 7/18
  2. 36/55
  3. 41/88
  4. 5/21
  5. 13/12
  6. 5/12
  7. 1/5
  8. 23/24
  9. 92/77
  10. 1/20
  11. 7/12
  12. 1/12
  13. 40/33
  14. 2/3
  15. 3/14
  16. 3/4
  17. 13/12
  18. 25/77
  19. 27/22
  20. 13/20
  21. 7/6
  22. 4/3
  23. 1
  24. 3/110
  25. 21/20
  26. 27/55
  27. 11/12
  28. 41/24
  29. 1
  30. 4/5
  31. 3/8
  32. 19/44
  33. 7/12
  34. 23/35
  35. 3/22
  36. 38/35
  37. 5/6
  38. 1/132
  39. 1/3
  40. 32/45

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