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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 915 · 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 + 3/4 =
  2. 2.4/9 − 1/11 =
  3. 3.3/6 + 1/2 =
  4. 4.4/8 + 1/2 =
  5. 5.2/3 − 1/9 =
  6. 6.9/12 + 1/5 =
  7. 7.8/12 − 1/6 =
  8. 8.9/10 + 1/2 =
  9. 9.1/10 + 5/7 =
  10. 10.2/6 − 3/12 =
  11. 11.5/7 − 1/7 =
  12. 12.10/11 − 5/11 =
  13. 13.8/12 + 1/12 =
  14. 14.4/9 − 1/9 =
  15. 15.4/5 + 1/2 =
  16. 16.9/10 + 2/7 =
  17. 17.2/12 + 1/2 =
  18. 18.1/2 + 1/2 =
  19. 19.1/2 − 1/3 =
  20. 20.6/7 − 7/9 =
  21. 21.3/5 + 3/12 =
  22. 22.4/5 + 3/9 =
  23. 23.1/2 − 1/9 =
  24. 24.1/2 + 5/7 =
  25. 25.2/8 + 3/4 =
  26. 26.2/3 + 1/6 =
  27. 27.1/2 + 1/5 =
  28. 28.1/4 + 4/7 =
  29. 29.1/2 + 2/6 =
  30. 30.6/10 + 3/10 =
  31. 31.1/2 − 1/12 =
  32. 32.8/9 − 2/10 =
  33. 33.4/5 − 2/5 =
  34. 34.1/3 + 6/9 =
  35. 35.7/9 − 1/4 =
  36. 36.6/12 − 3/11 =
  37. 37.1/2 − 1/3 =
  38. 38.8/12 + 6/12 =
  39. 39.4/10 + 6/10 =
  40. 40.1/5 + 1/9 =

Answer key

  1. 5/4
  2. 35/99
  3. 1
  4. 1
  5. 5/9
  6. 19/20
  7. 1/2
  8. 7/5
  9. 57/70
  10. 1/12
  11. 4/7
  12. 5/11
  13. 3/4
  14. 1/3
  15. 13/10
  16. 83/70
  17. 2/3
  18. 1
  19. 1/6
  20. 5/63
  21. 17/20
  22. 17/15
  23. 7/18
  24. 17/14
  25. 1
  26. 5/6
  27. 7/10
  28. 23/28
  29. 5/6
  30. 9/10
  31. 5/12
  32. 31/45
  33. 2/5
  34. 1
  35. 19/36
  36. 5/22
  37. 1/6
  38. 7/6
  39. 1
  40. 14/45

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