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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 524 · 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. 1.3/5 + 2/8 =
  2. 2.7/12 − 1/7 =
  3. 3.1/6 − 1/9 =
  4. 4.8/9 − 5/10 =
  5. 5.2/6 + 2/6 =
  6. 6.1/4 + 4/5 =
  7. 7.3/8 + 8/9 =
  8. 8.1/2 − 1/3 =
  9. 9.1/2 + 8/10 =
  10. 10.6/7 + 5/6 =
  11. 11.1/3 + 2/9 =
  12. 12.2/6 + 3/10 =
  13. 13.1/2 + 1/2 =
  14. 14.1/3 + 3/6 =
  15. 15.1/9 + 1/3 =
  16. 16.1/4 + 1/3 =
  17. 17.7/8 − 1/3 =
  18. 18.4/8 + 6/8 =
  19. 19.10/12 − 5/9 =
  20. 20.3/8 − 2/12 =
  21. 21.8/11 + 3/6 =
  22. 22.1/2 − 1/3 =
  23. 23.8/9 + 1/7 =
  24. 24.3/6 − 2/9 =
  25. 25.3/5 − 1/2 =
  26. 26.3/9 + 5/7 =
  27. 27.5/7 + 2/12 =
  28. 28.1/3 + 1/10 =
  29. 29.3/6 − 1/10 =
  30. 30.2/3 + 6/12 =
  31. 31.4/5 + 9/12 =
  32. 32.2/3 + 1/4 =
  33. 33.2/5 + 6/8 =
  34. 34.1/2 + 1/2 =
  35. 35.4/6 + 3/6 =
  36. 36.1/3 + 1/2 =
  37. 37.2/9 + 4/9 =
  38. 38.3/11 + 2/3 =
  39. 39.2/4 − 3/11 =
  40. 40.2/3 − 4/9 =

Answer key

  1. 17/20
  2. 37/84
  3. 1/18
  4. 7/18
  5. 2/3
  6. 21/20
  7. 91/72
  8. 1/6
  9. 13/10
  10. 71/42
  11. 5/9
  12. 19/30
  13. 1
  14. 5/6
  15. 4/9
  16. 7/12
  17. 13/24
  18. 5/4
  19. 5/18
  20. 5/24
  21. 27/22
  22. 1/6
  23. 65/63
  24. 5/18
  25. 1/10
  26. 22/21
  27. 37/42
  28. 13/30
  29. 2/5
  30. 7/6
  31. 31/20
  32. 11/12
  33. 23/20
  34. 1
  35. 7/6
  36. 5/6
  37. 2/3
  38. 31/33
  39. 5/22
  40. 2/9

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