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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 297 · 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. 1.3/4 − 5/11 =
  2. 2.1/3 + 1/3 =
  3. 3.6/7 − 1/2 =
  4. 4.2/3 + 1/12 =
  5. 5.3/6 + 8/12 =
  6. 6.1/6 + 3/7 =
  7. 7.1/4 − 1/10 =
  8. 8.1/2 + 10/11 =
  9. 9.11/12 − 1/2 =
  10. 10.5/7 + 1/2 =
  11. 11.3/4 + 2/3 =
  12. 12.6/10 + 1/5 =
  13. 13.1/3 − 1/7 =
  14. 14.2/3 + 6/7 =
  15. 15.1/2 + 1/6 =
  16. 16.3/4 − 3/8 =
  17. 17.1/7 + 3/5 =
  18. 18.1/6 + 1/3 =
  19. 19.2/5 + 2/4 =
  20. 20.4/10 + 4/10 =
  21. 21.4/5 + 1/2 =
  22. 22.1/3 + 3/4 =
  23. 23.6/10 + 1/2 =
  24. 24.5/7 − 2/10 =
  25. 25.6/8 − 1/5 =
  26. 26.1/2 + 3/9 =
  27. 27.2/11 + 1/2 =
  28. 28.3/4 − 4/6 =
  29. 29.1/4 + 4/10 =
  30. 30.3/9 + 1/8 =
  31. 31.1/4 + 1/4 =
  32. 32.4/11 − 3/10 =
  33. 33.10/11 − 1/5 =
  34. 34.2/3 − 1/2 =
  35. 35.3/9 + 1/11 =
  36. 36.2/4 + 10/12 =
  37. 37.1/12 + 3/7 =
  38. 38.3/7 + 5/9 =
  39. 39.8/9 − 1/12 =
  40. 40.1/4 + 2/8 =

Answer key

  1. 13/44
  2. 2/3
  3. 5/14
  4. 3/4
  5. 7/6
  6. 25/42
  7. 3/20
  8. 31/22
  9. 5/12
  10. 17/14
  11. 17/12
  12. 4/5
  13. 4/21
  14. 32/21
  15. 2/3
  16. 3/8
  17. 26/35
  18. 1/2
  19. 9/10
  20. 4/5
  21. 13/10
  22. 13/12
  23. 11/10
  24. 18/35
  25. 11/20
  26. 5/6
  27. 15/22
  28. 1/12
  29. 13/20
  30. 11/24
  31. 1/2
  32. 7/110
  33. 39/55
  34. 1/6
  35. 14/33
  36. 4/3
  37. 43/84
  38. 62/63
  39. 29/36
  40. 1/2

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