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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 756 · 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. 1.1/2 + 2/4 =
  2. 2.2/7 + 3/7 =
  3. 3.1/5 + 2/3 =
  4. 4.6/8 − 2/4 =
  5. 5.6/10 − 1/2 =
  6. 6.5/7 − 5/11 =
  7. 7.4/10 − 2/10 =
  8. 8.6/12 + 3/8 =
  9. 9.1/3 + 7/9 =
  10. 10.3/10 + 3/5 =
  11. 11.4/5 + 7/9 =
  12. 12.7/8 + 1/5 =
  13. 13.10/12 − 4/6 =
  14. 14.2/3 + 2/6 =
  15. 15.3/5 − 2/12 =
  16. 16.1/5 + 1/5 =
  17. 17.4/5 + 1/3 =
  18. 18.1/2 − 2/6 =
  19. 19.1/5 + 1/4 =
  20. 20.1/11 + 5/9 =
  21. 21.1/6 + 3/7 =
  22. 22.1/3 + 1/8 =
  23. 23.2/4 + 3/4 =
  24. 24.1/2 + 1/2 =
  25. 25.6/9 + 7/9 =
  26. 26.5/6 − 3/7 =
  27. 27.3/4 − 1/7 =
  28. 28.2/3 − 3/12 =
  29. 29.10/12 + 2/4 =
  30. 30.9/10 + 3/4 =
  31. 31.2/4 − 1/12 =
  32. 32.4/5 + 1/2 =
  33. 33.6/12 + 8/9 =
  34. 34.5/12 + 1/3 =
  35. 35.1/5 + 2/3 =
  36. 36.6/8 − 2/4 =
  37. 37.2/4 + 2/12 =
  38. 38.1/2 + 3/7 =
  39. 39.1/3 + 1/2 =
  40. 40.1/3 + 5/7 =

Answer key

  1. 1
  2. 5/7
  3. 13/15
  4. 1/4
  5. 1/10
  6. 20/77
  7. 1/5
  8. 7/8
  9. 10/9
  10. 9/10
  11. 71/45
  12. 43/40
  13. 1/6
  14. 1
  15. 13/30
  16. 2/5
  17. 17/15
  18. 1/6
  19. 9/20
  20. 64/99
  21. 25/42
  22. 11/24
  23. 5/4
  24. 1
  25. 13/9
  26. 17/42
  27. 17/28
  28. 5/12
  29. 4/3
  30. 33/20
  31. 5/12
  32. 13/10
  33. 25/18
  34. 3/4
  35. 13/15
  36. 1/4
  37. 2/3
  38. 13/14
  39. 5/6
  40. 22/21

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