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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 646 · 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. 1.10/11 + 3/4 =
  2. 2.5/11 − 4/11 =
  3. 3.1/4 + 5/9 =
  4. 4.4/6 + 5/12 =
  5. 5.1/4 + 5/7 =
  6. 6.8/9 + 5/9 =
  7. 7.5/8 + 3/11 =
  8. 8.4/5 − 1/2 =
  9. 9.3/5 + 4/9 =
  10. 10.2/8 + 1/2 =
  11. 11.3/11 + 5/6 =
  12. 12.9/12 − 1/7 =
  13. 13.2/4 − 1/5 =
  14. 14.1/4 + 1/6 =
  15. 15.5/7 + 1/8 =
  16. 16.3/11 − 1/12 =
  17. 17.3/7 + 4/5 =
  18. 18.3/5 − 2/7 =
  19. 19.2/3 − 3/8 =
  20. 20.6/7 − 2/12 =
  21. 21.2/3 − 1/2 =
  22. 22.2/3 − 3/10 =
  23. 23.4/12 − 1/5 =
  24. 24.1/3 + 8/11 =
  25. 25.2/7 − 1/10 =
  26. 26.1/2 + 1/4 =
  27. 27.4/8 − 1/11 =
  28. 28.2/3 + 1/2 =
  29. 29.1/9 + 5/6 =
  30. 30.6/10 − 1/5 =
  31. 31.1/5 + 1/2 =
  32. 32.3/4 − 1/2 =
  33. 33.3/4 − 1/3 =
  34. 34.4/6 + 6/8 =
  35. 35.1/7 − 1/10 =
  36. 36.2/3 − 5/8 =
  37. 37.3/4 + 7/10 =
  38. 38.2/4 + 2/6 =
  39. 39.4/8 + 1/2 =
  40. 40.7/10 − 3/11 =

Answer key

  1. 73/44
  2. 1/11
  3. 29/36
  4. 13/12
  5. 27/28
  6. 13/9
  7. 79/88
  8. 3/10
  9. 47/45
  10. 3/4
  11. 73/66
  12. 17/28
  13. 3/10
  14. 5/12
  15. 47/56
  16. 25/132
  17. 43/35
  18. 11/35
  19. 7/24
  20. 29/42
  21. 1/6
  22. 11/30
  23. 2/15
  24. 35/33
  25. 13/70
  26. 3/4
  27. 9/22
  28. 7/6
  29. 17/18
  30. 2/5
  31. 7/10
  32. 1/4
  33. 5/12
  34. 17/12
  35. 3/70
  36. 1/24
  37. 29/20
  38. 5/6
  39. 1
  40. 47/110

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