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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 141 · 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. 1.8/10 − 8/11 =
  2. 2.1/2 − 1/6 =
  3. 3.2/11 + 1/2 =
  4. 4.7/9 + 6/11 =
  5. 5.9/10 + 3/5 =
  6. 6.5/7 − 2/5 =
  7. 7.6/9 − 1/5 =
  8. 8.6/12 − 2/8 =
  9. 9.6/10 + 3/4 =
  10. 10.3/6 − 3/9 =
  11. 11.1/2 − 1/4 =
  12. 12.1/3 + 2/3 =
  13. 13.1/2 + 7/8 =
  14. 14.5/7 + 6/7 =
  15. 15.1/4 + 2/4 =
  16. 16.1/3 − 3/11 =
  17. 17.1/8 + 3/9 =
  18. 18.8/10 − 2/6 =
  19. 19.8/11 + 1/4 =
  20. 20.5/8 + 1/5 =
  21. 21.6/9 − 5/9 =
  22. 22.3/8 + 1/7 =
  23. 23.6/12 + 1/7 =
  24. 24.1/6 + 3/10 =
  25. 25.2/4 − 1/11 =
  26. 26.5/7 + 7/11 =
  27. 27.3/7 + 8/12 =
  28. 28.1/6 + 2/3 =
  29. 29.1/3 − 1/9 =
  30. 30.4/10 + 3/5 =
  31. 31.1/2 + 1/3 =
  32. 32.6/8 + 3/5 =
  33. 33.5/11 + 2/12 =
  34. 34.8/11 − 6/9 =
  35. 35.10/11 − 2/3 =
  36. 36.3/4 − 3/6 =
  37. 37.1/2 − 1/9 =
  38. 38.5/9 + 1/9 =
  39. 39.3/4 − 2/4 =
  40. 40.3/5 − 1/2 =

Answer key

  1. 4/55
  2. 1/3
  3. 15/22
  4. 131/99
  5. 3/2
  6. 11/35
  7. 7/15
  8. 1/4
  9. 27/20
  10. 1/6
  11. 1/4
  12. 1
  13. 11/8
  14. 11/7
  15. 3/4
  16. 2/33
  17. 11/24
  18. 7/15
  19. 43/44
  20. 33/40
  21. 1/9
  22. 29/56
  23. 9/14
  24. 7/15
  25. 9/22
  26. 104/77
  27. 23/21
  28. 5/6
  29. 2/9
  30. 1
  31. 5/6
  32. 27/20
  33. 41/66
  34. 2/33
  35. 8/33
  36. 1/4
  37. 7/18
  38. 2/3
  39. 1/4
  40. 1/10

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