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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 265 · 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. 1.10/12 − 4/10 =
  2. 2.1/2 + 7/11 =
  3. 3.4/5 − 1/3 =
  4. 4.4/7 + 1/2 =
  5. 5.3/6 − 1/3 =
  6. 6.2/3 − 1/4 =
  7. 7.3/11 + 3/7 =
  8. 8.7/9 − 4/8 =
  9. 9.1/2 + 1/2 =
  10. 10.1/3 + 4/9 =
  11. 11.1/2 + 5/12 =
  12. 12.1/2 − 4/9 =
  13. 13.3/4 − 1/5 =
  14. 14.8/10 − 6/10 =
  15. 15.4/6 − 6/11 =
  16. 16.3/4 + 2/3 =
  17. 17.2/12 + 1/4 =
  18. 18.3/10 + 1/4 =
  19. 19.3/4 + 1/3 =
  20. 20.2/4 + 4/8 =
  21. 21.4/10 + 4/7 =
  22. 22.3/6 − 4/9 =
  23. 23.3/6 + 2/8 =
  24. 24.4/5 + 2/7 =
  25. 25.4/6 − 1/10 =
  26. 26.1/3 + 1/9 =
  27. 27.4/7 + 4/6 =
  28. 28.4/5 + 1/2 =
  29. 29.4/8 + 7/8 =
  30. 30.2/3 − 2/9 =
  31. 31.1/2 + 2/4 =
  32. 32.3/4 − 1/5 =
  33. 33.7/12 + 1/2 =
  34. 34.1/3 + 1/7 =
  35. 35.4/11 + 5/7 =
  36. 36.8/12 + 1/3 =
  37. 37.5/6 − 1/3 =
  38. 38.7/9 + 5/7 =
  39. 39.1/2 − 1/3 =
  40. 40.1/8 + 1/8 =

Answer key

  1. 13/30
  2. 25/22
  3. 7/15
  4. 15/14
  5. 1/6
  6. 5/12
  7. 54/77
  8. 5/18
  9. 1
  10. 7/9
  11. 11/12
  12. 1/18
  13. 11/20
  14. 1/5
  15. 4/33
  16. 17/12
  17. 5/12
  18. 11/20
  19. 13/12
  20. 1
  21. 34/35
  22. 1/18
  23. 3/4
  24. 38/35
  25. 17/30
  26. 4/9
  27. 26/21
  28. 13/10
  29. 11/8
  30. 4/9
  31. 1
  32. 11/20
  33. 13/12
  34. 10/21
  35. 83/77
  36. 1
  37. 1/2
  38. 94/63
  39. 1/6
  40. 1/4

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