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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 717 · 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. 1.6/10 − 1/9 =
  2. 2.2/9 + 6/8 =
  3. 3.3/9 + 3/12 =
  4. 4.2/10 − 1/9 =
  5. 5.3/9 + 2/3 =
  6. 6.6/7 − 2/6 =
  7. 7.3/11 + 1/3 =
  8. 8.3/7 + 3/7 =
  9. 9.3/4 − 3/6 =
  10. 10.2/3 + 2/9 =
  11. 11.1/2 − 2/5 =
  12. 12.2/5 + 1/7 =
  13. 13.3/7 + 3/7 =
  14. 14.4/9 + 4/10 =
  15. 15.7/10 − 1/4 =
  16. 16.6/8 + 1/2 =
  17. 17.4/7 + 1/2 =
  18. 18.3/6 + 7/11 =
  19. 19.3/4 + 2/4 =
  20. 20.5/7 + 4/11 =
  21. 21.8/9 + 2/6 =
  22. 22.8/10 − 1/4 =
  23. 23.5/7 − 2/12 =
  24. 24.3/4 − 1/2 =
  25. 25.2/3 − 2/12 =
  26. 26.2/10 + 3/4 =
  27. 27.2/3 − 1/2 =
  28. 28.2/8 − 1/6 =
  29. 29.1/3 + 4/7 =
  30. 30.1/5 + 1/2 =
  31. 31.10/11 − 1/9 =
  32. 32.7/9 − 1/10 =
  33. 33.5/11 + 8/12 =
  34. 34.3/7 + 2/3 =
  35. 35.4/12 + 2/5 =
  36. 36.3/4 + 2/9 =
  37. 37.8/10 − 2/12 =
  38. 38.1/4 + 1/4 =
  39. 39.6/8 + 3/5 =
  40. 40.1/2 + 1/4 =

Answer key

  1. 22/45
  2. 35/36
  3. 7/12
  4. 4/45
  5. 1
  6. 11/21
  7. 20/33
  8. 6/7
  9. 1/4
  10. 8/9
  11. 1/10
  12. 19/35
  13. 6/7
  14. 38/45
  15. 9/20
  16. 5/4
  17. 15/14
  18. 25/22
  19. 5/4
  20. 83/77
  21. 11/9
  22. 11/20
  23. 23/42
  24. 1/4
  25. 1/2
  26. 19/20
  27. 1/6
  28. 1/12
  29. 19/21
  30. 7/10
  31. 79/99
  32. 61/90
  33. 37/33
  34. 23/21
  35. 11/15
  36. 35/36
  37. 19/30
  38. 1/2
  39. 27/20
  40. 3/4

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