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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 427 · 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. 1.2/4 + 5/7 =
  2. 2.4/7 + 6/12 =
  3. 3.1/4 + 5/8 =
  4. 4.1/2 + 5/6 =
  5. 5.1/2 − 4/11 =
  6. 6.7/10 − 1/6 =
  7. 7.3/5 − 1/3 =
  8. 8.1/4 + 5/9 =
  9. 9.1/2 − 2/5 =
  10. 10.2/6 + 11/12 =
  11. 11.3/6 + 2/11 =
  12. 12.4/7 − 1/11 =
  13. 13.1/2 − 1/3 =
  14. 14.1/3 + 2/3 =
  15. 15.2/3 + 2/9 =
  16. 16.2/3 − 4/12 =
  17. 17.3/5 + 7/11 =
  18. 18.1/5 + 3/4 =
  19. 19.5/7 + 2/7 =
  20. 20.6/11 + 9/10 =
  21. 21.5/6 + 3/12 =
  22. 22.1/2 − 1/3 =
  23. 23.1/2 + 3/8 =
  24. 24.1/2 + 6/8 =
  25. 25.9/10 − 2/12 =
  26. 26.1/2 + 3/8 =
  27. 27.1/4 + 2/6 =
  28. 28.1/8 + 3/4 =
  29. 29.2/5 − 1/3 =
  30. 30.3/10 − 1/9 =
  31. 31.1/4 − 2/12 =
  32. 32.2/11 + 1/7 =
  33. 33.3/4 − 2/4 =
  34. 34.4/5 + 1/6 =
  35. 35.5/7 − 2/5 =
  36. 36.7/12 + 2/4 =
  37. 37.2/6 + 1/3 =
  38. 38.9/10 − 8/11 =
  39. 39.6/11 + 5/10 =
  40. 40.3/7 + 2/12 =

Answer key

  1. 17/14
  2. 15/14
  3. 7/8
  4. 4/3
  5. 3/22
  6. 8/15
  7. 4/15
  8. 29/36
  9. 1/10
  10. 5/4
  11. 15/22
  12. 37/77
  13. 1/6
  14. 1
  15. 8/9
  16. 1/3
  17. 68/55
  18. 19/20
  19. 1
  20. 159/110
  21. 13/12
  22. 1/6
  23. 7/8
  24. 5/4
  25. 11/15
  26. 7/8
  27. 7/12
  28. 7/8
  29. 1/15
  30. 17/90
  31. 1/12
  32. 25/77
  33. 1/4
  34. 29/30
  35. 11/35
  36. 13/12
  37. 2/3
  38. 19/110
  39. 23/22
  40. 25/42

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