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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 545 · 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. 1.7/8 + 2/4 =
  2. 2.1/8 + 4/9 =
  3. 3.1/2 − 3/10 =
  4. 4.3/5 − 1/3 =
  5. 5.5/12 + 4/5 =
  6. 6.4/5 − 1/5 =
  7. 7.1/4 + 3/12 =
  8. 8.4/12 + 3/11 =
  9. 9.1/7 + 6/7 =
  10. 10.10/12 − 4/11 =
  11. 11.7/11 + 2/8 =
  12. 12.1/7 + 3/4 =
  13. 13.1/4 + 1/2 =
  14. 14.1/4 + 2/4 =
  15. 15.1/2 + 9/12 =
  16. 16.7/9 + 2/11 =
  17. 17.5/11 − 2/7 =
  18. 18.3/7 + 6/7 =
  19. 19.2/3 + 1/2 =
  20. 20.1/8 + 1/5 =
  21. 21.1/2 + 1/4 =
  22. 22.8/12 + 5/9 =
  23. 23.2/4 − 2/11 =
  24. 24.2/4 − 4/9 =
  25. 25.1/3 + 1/3 =
  26. 26.1/9 + 4/5 =
  27. 27.1/11 + 2/7 =
  28. 28.1/10 + 1/2 =
  29. 29.1/3 + 1/2 =
  30. 30.1/2 + 2/11 =
  31. 31.7/10 − 3/7 =
  32. 32.3/6 − 1/12 =
  33. 33.7/12 − 3/8 =
  34. 34.2/7 + 1/8 =
  35. 35.2/11 − 1/8 =
  36. 36.4/9 + 7/12 =
  37. 37.9/11 − 1/3 =
  38. 38.3/5 + 4/7 =
  39. 39.4/8 − 5/11 =
  40. 40.1/2 + 4/5 =

Answer key

  1. 11/8
  2. 41/72
  3. 1/5
  4. 4/15
  5. 73/60
  6. 3/5
  7. 1/2
  8. 20/33
  9. 1
  10. 31/66
  11. 39/44
  12. 25/28
  13. 3/4
  14. 3/4
  15. 5/4
  16. 95/99
  17. 13/77
  18. 9/7
  19. 7/6
  20. 13/40
  21. 3/4
  22. 11/9
  23. 7/22
  24. 1/18
  25. 2/3
  26. 41/45
  27. 29/77
  28. 3/5
  29. 5/6
  30. 15/22
  31. 19/70
  32. 5/12
  33. 5/24
  34. 23/56
  35. 5/88
  36. 37/36
  37. 16/33
  38. 41/35
  39. 1/22
  40. 13/10

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