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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 734 · 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. 1.7/10 − 1/2 =
  2. 2.5/8 − 5/9 =
  3. 3.2/3 − 2/7 =
  4. 4.5/6 + 7/12 =
  5. 5.6/7 + 3/9 =
  6. 6.8/12 + 1/5 =
  7. 7.9/12 − 4/6 =
  8. 8.1/2 − 1/4 =
  9. 9.3/11 + 1/3 =
  10. 10.5/9 − 5/10 =
  11. 11.4/7 − 1/4 =
  12. 12.7/12 − 3/12 =
  13. 13.1/4 + 8/9 =
  14. 14.1/6 + 7/12 =
  15. 15.1/8 − 1/12 =
  16. 16.3/9 + 5/9 =
  17. 17.2/4 + 5/12 =
  18. 18.3/5 + 4/12 =
  19. 19.3/4 − 3/8 =
  20. 20.3/11 − 1/4 =
  21. 21.7/12 − 1/3 =
  22. 22.1/2 − 1/4 =
  23. 23.1/10 + 4/5 =
  24. 24.7/9 + 1/2 =
  25. 25.1/12 + 6/9 =
  26. 26.7/11 + 3/4 =
  27. 27.1/3 + 6/7 =
  28. 28.10/12 − 1/2 =
  29. 29.6/10 − 2/10 =
  30. 30.3/4 − 1/2 =
  31. 31.9/11 + 4/5 =
  32. 32.1/2 − 2/11 =
  33. 33.5/12 + 3/10 =
  34. 34.3/5 − 2/11 =
  35. 35.7/8 + 1/12 =
  36. 36.1/2 + 2/8 =
  37. 37.10/11 + 1/2 =
  38. 38.2/4 + 1/4 =
  39. 39.7/9 − 1/2 =
  40. 40.8/10 + 1/2 =

Answer key

  1. 1/5
  2. 5/72
  3. 8/21
  4. 17/12
  5. 25/21
  6. 13/15
  7. 1/12
  8. 1/4
  9. 20/33
  10. 1/18
  11. 9/28
  12. 1/3
  13. 41/36
  14. 3/4
  15. 1/24
  16. 8/9
  17. 11/12
  18. 14/15
  19. 3/8
  20. 1/44
  21. 1/4
  22. 1/4
  23. 9/10
  24. 23/18
  25. 3/4
  26. 61/44
  27. 25/21
  28. 1/3
  29. 2/5
  30. 1/4
  31. 89/55
  32. 7/22
  33. 43/60
  34. 23/55
  35. 23/24
  36. 3/4
  37. 31/22
  38. 3/4
  39. 5/18
  40. 13/10

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