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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 388 · 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. 1.1/10 + 2/11 =
  2. 2.9/10 − 3/5 =
  3. 3.1/3 + 1/6 =
  4. 4.8/11 − 4/11 =
  5. 5.1/2 − 3/11 =
  6. 6.6/11 + 1/11 =
  7. 7.1/7 + 7/10 =
  8. 8.3/9 − 1/4 =
  9. 9.5/10 − 3/7 =
  10. 10.2/8 + 3/7 =
  11. 11.6/10 − 1/7 =
  12. 12.3/5 + 4/5 =
  13. 13.3/5 + 5/9 =
  14. 14.1/5 + 1/3 =
  15. 15.5/6 + 1/2 =
  16. 16.1/6 + 1/2 =
  17. 17.7/10 + 1/2 =
  18. 18.2/6 − 1/4 =
  19. 19.9/12 + 2/9 =
  20. 20.11/12 + 4/5 =
  21. 21.6/7 − 1/3 =
  22. 22.4/7 + 1/4 =
  23. 23.1/2 + 4/8 =
  24. 24.2/3 − 5/9 =
  25. 25.6/12 + 1/2 =
  26. 26.4/5 − 4/6 =
  27. 27.8/9 + 3/5 =
  28. 28.2/5 + 3/5 =
  29. 29.1/6 + 7/9 =
  30. 30.5/8 + 1/6 =
  31. 31.2/4 + 7/10 =
  32. 32.3/4 − 3/11 =
  33. 33.3/8 + 4/10 =
  34. 34.1/2 − 3/11 =
  35. 35.3/6 − 2/5 =
  36. 36.1/2 − 4/9 =
  37. 37.1/2 − 4/10 =
  38. 38.2/3 + 2/8 =
  39. 39.4/7 + 6/10 =
  40. 40.4/9 − 1/11 =

Answer key

  1. 31/110
  2. 3/10
  3. 1/2
  4. 4/11
  5. 5/22
  6. 7/11
  7. 59/70
  8. 1/12
  9. 1/14
  10. 19/28
  11. 16/35
  12. 7/5
  13. 52/45
  14. 8/15
  15. 4/3
  16. 2/3
  17. 6/5
  18. 1/12
  19. 35/36
  20. 103/60
  21. 11/21
  22. 23/28
  23. 1
  24. 1/9
  25. 1
  26. 2/15
  27. 67/45
  28. 1
  29. 17/18
  30. 19/24
  31. 6/5
  32. 21/44
  33. 31/40
  34. 5/22
  35. 1/10
  36. 1/18
  37. 1/10
  38. 11/12
  39. 41/35
  40. 35/99

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