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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 929 · 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. 1.4/9 + 1/4 =
  2. 2.1/2 + 3/4 =
  3. 3.5/10 − 2/6 =
  4. 4.10/12 − 1/3 =
  5. 5.1/2 + 1/5 =
  6. 6.1/7 + 1/3 =
  7. 7.1/6 + 1/2 =
  8. 8.5/10 + 1/2 =
  9. 9.3/7 + 2/7 =
  10. 10.1/2 − 1/6 =
  11. 11.1/2 + 5/10 =
  12. 12.9/11 + 2/10 =
  13. 13.11/12 + 2/6 =
  14. 14.1/6 − 1/7 =
  15. 15.3/10 + 4/5 =
  16. 16.7/8 − 1/2 =
  17. 17.3/6 − 1/6 =
  18. 18.4/6 + 2/3 =
  19. 19.5/10 + 5/7 =
  20. 20.3/5 + 1/6 =
  21. 21.1/2 + 3/4 =
  22. 22.1/9 + 1/2 =
  23. 23.1/2 − 1/9 =
  24. 24.2/5 − 1/3 =
  25. 25.1/12 + 7/10 =
  26. 26.5/7 − 1/3 =
  27. 27.2/3 − 1/2 =
  28. 28.3/12 + 1/2 =
  29. 29.4/10 − 1/4 =
  30. 30.5/10 + 2/4 =
  31. 31.2/9 + 4/12 =
  32. 32.5/6 − 1/8 =
  33. 33.1/6 + 1/4 =
  34. 34.1/2 − 1/8 =
  35. 35.6/8 − 3/5 =
  36. 36.8/9 + 2/6 =
  37. 37.3/4 − 1/5 =
  38. 38.2/10 + 5/6 =
  39. 39.3/4 − 2/3 =
  40. 40.5/12 + 1/7 =

Answer key

  1. 25/36
  2. 5/4
  3. 1/6
  4. 1/2
  5. 7/10
  6. 10/21
  7. 2/3
  8. 1
  9. 5/7
  10. 1/3
  11. 1
  12. 56/55
  13. 5/4
  14. 1/42
  15. 11/10
  16. 3/8
  17. 1/3
  18. 4/3
  19. 17/14
  20. 23/30
  21. 5/4
  22. 11/18
  23. 7/18
  24. 1/15
  25. 47/60
  26. 8/21
  27. 1/6
  28. 3/4
  29. 3/20
  30. 1
  31. 5/9
  32. 17/24
  33. 5/12
  34. 3/8
  35. 3/20
  36. 11/9
  37. 11/20
  38. 31/30
  39. 1/12
  40. 47/84

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