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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 485 · 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 − 7/11 =
  2. 2.2/4 + 3/5 =
  3. 3.1/3 + 5/8 =
  4. 4.10/11 + 2/6 =
  5. 5.8/10 − 1/10 =
  6. 6.1/2 + 1/5 =
  7. 7.1/2 − 2/12 =
  8. 8.10/12 − 1/9 =
  9. 9.1/7 + 3/11 =
  10. 10.1/2 − 5/12 =
  11. 11.2/8 − 1/6 =
  12. 12.1/12 + 4/9 =
  13. 13.1/4 + 10/12 =
  14. 14.7/10 + 3/10 =
  15. 15.5/6 − 1/2 =
  16. 16.3/4 − 1/2 =
  17. 17.2/3 − 1/9 =
  18. 18.1/2 − 1/5 =
  19. 19.6/10 + 1/4 =
  20. 20.9/10 + 1/2 =
  21. 21.4/5 − 3/4 =
  22. 22.8/12 − 2/5 =
  23. 23.1/4 + 6/7 =
  24. 24.1/3 + 5/7 =
  25. 25.2/6 + 1/2 =
  26. 26.2/7 + 2/3 =
  27. 27.7/11 − 2/7 =
  28. 28.5/11 + 1/3 =
  29. 29.2/5 − 1/4 =
  30. 30.2/4 − 1/12 =
  31. 31.4/6 − 1/6 =
  32. 32.5/7 + 3/10 =
  33. 33.9/11 + 1/5 =
  34. 34.2/3 + 1/2 =
  35. 35.2/8 + 8/10 =
  36. 36.6/9 − 1/3 =
  37. 37.3/6 − 2/6 =
  38. 38.3/8 + 1/3 =
  39. 39.3/9 + 4/12 =
  40. 40.3/4 + 4/8 =

Answer key

  1. 1/33
  2. 11/10
  3. 23/24
  4. 41/33
  5. 7/10
  6. 7/10
  7. 1/3
  8. 13/18
  9. 32/77
  10. 1/12
  11. 1/12
  12. 19/36
  13. 13/12
  14. 1
  15. 1/3
  16. 1/4
  17. 5/9
  18. 3/10
  19. 17/20
  20. 7/5
  21. 1/20
  22. 4/15
  23. 31/28
  24. 22/21
  25. 5/6
  26. 20/21
  27. 27/77
  28. 26/33
  29. 3/20
  30. 5/12
  31. 1/2
  32. 71/70
  33. 56/55
  34. 7/6
  35. 21/20
  36. 1/3
  37. 1/6
  38. 17/24
  39. 2/3
  40. 5/4

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