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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 949 · 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. 1.3/6 + 2/8 =
  2. 2.2/10 + 1/4 =
  3. 3.2/12 + 9/12 =
  4. 4.5/6 − 1/4 =
  5. 5.3/6 + 3/6 =
  6. 6.3/8 + 9/12 =
  7. 7.5/12 + 2/8 =
  8. 8.7/11 + 1/4 =
  9. 9.3/11 + 2/5 =
  10. 10.2/3 + 4/6 =
  11. 11.6/12 + 1/2 =
  12. 12.1/3 + 3/8 =
  13. 13.2/10 + 1/12 =
  14. 14.2/11 + 4/7 =
  15. 15.2/7 + 6/9 =
  16. 16.3/5 + 4/11 =
  17. 17.3/4 − 2/10 =
  18. 18.1/6 + 7/10 =
  19. 19.2/3 − 3/6 =
  20. 20.4/5 − 2/5 =
  21. 21.4/5 − 1/4 =
  22. 22.4/6 − 3/9 =
  23. 23.3/4 + 1/10 =
  24. 24.2/3 − 1/2 =
  25. 25.1/3 + 10/12 =
  26. 26.3/4 − 6/11 =
  27. 27.4/11 + 1/2 =
  28. 28.1/4 + 4/9 =
  29. 29.1/2 − 2/9 =
  30. 30.1/2 − 1/3 =
  31. 31.1/3 − 1/8 =
  32. 32.1/3 − 1/6 =
  33. 33.1/4 + 1/4 =
  34. 34.9/10 − 7/10 =
  35. 35.6/12 + 2/7 =
  36. 36.3/4 + 1/2 =
  37. 37.10/12 + 3/6 =
  38. 38.8/11 + 2/9 =
  39. 39.2/12 + 1/2 =
  40. 40.4/7 − 2/12 =

Answer key

  1. 3/4
  2. 9/20
  3. 11/12
  4. 7/12
  5. 1
  6. 9/8
  7. 2/3
  8. 39/44
  9. 37/55
  10. 4/3
  11. 1
  12. 17/24
  13. 17/60
  14. 58/77
  15. 20/21
  16. 53/55
  17. 11/20
  18. 13/15
  19. 1/6
  20. 2/5
  21. 11/20
  22. 1/3
  23. 17/20
  24. 1/6
  25. 7/6
  26. 9/44
  27. 19/22
  28. 25/36
  29. 5/18
  30. 1/6
  31. 5/24
  32. 1/6
  33. 1/2
  34. 1/5
  35. 11/14
  36. 5/4
  37. 4/3
  38. 94/99
  39. 2/3
  40. 17/42

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