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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 754 · 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 + 1/2 =
  2. 2.5/8 − 5/9 =
  3. 3.3/9 + 1/3 =
  4. 4.11/12 − 9/12 =
  5. 5.4/7 − 2/8 =
  6. 6.5/12 − 1/7 =
  7. 7.4/8 + 4/5 =
  8. 8.7/8 − 3/9 =
  9. 9.1/5 + 1/5 =
  10. 10.1/4 + 3/7 =
  11. 11.8/11 − 2/6 =
  12. 12.1/2 + 4/5 =
  13. 13.1/4 + 1/3 =
  14. 14.2/3 − 1/12 =
  15. 15.3/4 − 2/6 =
  16. 16.6/12 − 2/9 =
  17. 17.4/8 + 1/6 =
  18. 18.8/12 − 4/7 =
  19. 19.3/12 + 2/4 =
  20. 20.6/7 − 1/2 =
  21. 21.4/7 + 5/7 =
  22. 22.2/7 + 1/3 =
  23. 23.2/10 + 1/5 =
  24. 24.9/12 + 9/12 =
  25. 25.7/9 + 2/5 =
  26. 26.2/8 + 2/5 =
  27. 27.1/2 + 2/5 =
  28. 28.1/5 + 1/3 =
  29. 29.10/12 − 1/2 =
  30. 30.8/12 + 3/4 =
  31. 31.3/6 − 2/5 =
  32. 32.3/11 + 4/12 =
  33. 33.6/7 + 2/5 =
  34. 34.1/2 + 2/8 =
  35. 35.1/2 + 1/2 =
  36. 36.1/2 + 1/2 =
  37. 37.1/12 + 6/8 =
  38. 38.1/10 + 4/6 =
  39. 39.1/3 + 9/10 =
  40. 40.7/8 − 4/9 =

Answer key

  1. 5/4
  2. 5/72
  3. 2/3
  4. 1/6
  5. 9/28
  6. 23/84
  7. 13/10
  8. 13/24
  9. 2/5
  10. 19/28
  11. 13/33
  12. 13/10
  13. 7/12
  14. 7/12
  15. 5/12
  16. 5/18
  17. 2/3
  18. 2/21
  19. 3/4
  20. 5/14
  21. 9/7
  22. 13/21
  23. 2/5
  24. 3/2
  25. 53/45
  26. 13/20
  27. 9/10
  28. 8/15
  29. 1/3
  30. 17/12
  31. 1/10
  32. 20/33
  33. 44/35
  34. 3/4
  35. 1
  36. 1
  37. 5/6
  38. 23/30
  39. 37/30
  40. 31/72

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