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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 257 · 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. 1.2/3 − 6/12 =
  2. 2.3/5 − 2/8 =
  3. 3.10/11 + 2/3 =
  4. 4.5/9 − 1/6 =
  5. 5.1/2 + 1/11 =
  6. 6.6/12 + 2/4 =
  7. 7.1/5 + 1/2 =
  8. 8.6/7 − 4/10 =
  9. 9.5/8 + 3/4 =
  10. 10.2/6 + 8/12 =
  11. 11.2/5 + 6/7 =
  12. 12.6/8 + 5/9 =
  13. 13.1/7 + 1/2 =
  14. 14.4/7 + 1/2 =
  15. 15.4/5 − 5/9 =
  16. 16.11/12 + 1/3 =
  17. 17.4/6 − 1/7 =
  18. 18.1/2 + 11/12 =
  19. 19.3/8 + 3/7 =
  20. 20.1/4 + 1/5 =
  21. 21.1/3 + 2/7 =
  22. 22.1/4 + 1/2 =
  23. 23.1/2 + 1/2 =
  24. 24.5/9 + 3/6 =
  25. 25.1/2 − 1/3 =
  26. 26.7/11 + 4/5 =
  27. 27.8/12 − 4/12 =
  28. 28.2/6 − 1/7 =
  29. 29.9/10 + 1/2 =
  30. 30.4/5 − 1/2 =
  31. 31.1/2 − 1/7 =
  32. 32.1/6 + 1/7 =
  33. 33.1/2 + 4/9 =
  34. 34.1/2 − 1/3 =
  35. 35.7/10 − 1/4 =
  36. 36.2/4 + 5/6 =
  37. 37.1/2 + 1/7 =
  38. 38.2/3 + 1/7 =
  39. 39.8/11 + 4/12 =
  40. 40.7/9 − 2/12 =

Answer key

  1. 1/6
  2. 7/20
  3. 52/33
  4. 7/18
  5. 13/22
  6. 1
  7. 7/10
  8. 16/35
  9. 11/8
  10. 1
  11. 44/35
  12. 47/36
  13. 9/14
  14. 15/14
  15. 11/45
  16. 5/4
  17. 11/21
  18. 17/12
  19. 45/56
  20. 9/20
  21. 13/21
  22. 3/4
  23. 1
  24. 19/18
  25. 1/6
  26. 79/55
  27. 1/3
  28. 4/21
  29. 7/5
  30. 3/10
  31. 5/14
  32. 13/42
  33. 17/18
  34. 1/6
  35. 9/20
  36. 4/3
  37. 9/14
  38. 17/21
  39. 35/33
  40. 11/18

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