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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 24 · 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. 1.5/9 + 5/11 =
  2. 2.1/3 + 1/3 =
  3. 3.1/3 − 2/12 =
  4. 4.10/11 − 2/7 =
  5. 5.1/4 − 1/5 =
  6. 6.1/9 + 2/8 =
  7. 7.1/2 + 1/2 =
  8. 8.4/8 − 3/8 =
  9. 9.1/5 + 1/2 =
  10. 10.1/6 + 7/9 =
  11. 11.3/4 + 1/2 =
  12. 12.4/7 + 2/12 =
  13. 13.7/9 + 5/9 =
  14. 14.7/11 + 7/8 =
  15. 15.8/10 + 2/4 =
  16. 16.2/3 − 4/8 =
  17. 17.3/9 + 3/12 =
  18. 18.5/6 − 1/2 =
  19. 19.2/5 + 1/3 =
  20. 20.3/5 + 1/3 =
  21. 21.1/6 + 1/3 =
  22. 22.3/4 − 4/7 =
  23. 23.10/12 + 1/2 =
  24. 24.1/2 + 1/6 =
  25. 25.5/7 − 1/3 =
  26. 26.5/9 + 5/7 =
  27. 27.4/5 − 1/5 =
  28. 28.4/5 + 2/4 =
  29. 29.2/4 + 1/4 =
  30. 30.2/3 − 7/12 =
  31. 31.1/2 + 3/11 =
  32. 32.4/7 + 3/9 =
  33. 33.4/10 + 2/9 =
  34. 34.1/2 + 1/3 =
  35. 35.2/7 + 1/7 =
  36. 36.1/2 + 1/2 =
  37. 37.5/7 + 3/6 =
  38. 38.5/10 + 1/3 =
  39. 39.6/12 + 5/6 =
  40. 40.5/10 + 1/4 =

Answer key

  1. 100/99
  2. 2/3
  3. 1/6
  4. 48/77
  5. 1/20
  6. 13/36
  7. 1
  8. 1/8
  9. 7/10
  10. 17/18
  11. 5/4
  12. 31/42
  13. 4/3
  14. 133/88
  15. 13/10
  16. 1/6
  17. 7/12
  18. 1/3
  19. 11/15
  20. 14/15
  21. 1/2
  22. 5/28
  23. 4/3
  24. 2/3
  25. 8/21
  26. 80/63
  27. 3/5
  28. 13/10
  29. 3/4
  30. 1/12
  31. 17/22
  32. 19/21
  33. 28/45
  34. 5/6
  35. 3/7
  36. 1
  37. 17/14
  38. 5/6
  39. 4/3
  40. 3/4

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