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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 867 · 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. 1.5/8 + 4/9 =
  2. 2.5/6 − 2/8 =
  3. 3.7/10 − 1/2 =
  4. 4.1/5 + 1/2 =
  5. 5.1/3 + 1/5 =
  6. 6.1/5 + 2/6 =
  7. 7.3/10 + 2/5 =
  8. 8.2/8 + 7/8 =
  9. 9.1/4 + 1/5 =
  10. 10.7/9 + 5/7 =
  11. 11.6/9 − 4/8 =
  12. 12.1/2 + 3/9 =
  13. 13.7/11 + 6/12 =
  14. 14.1/3 + 1/2 =
  15. 15.4/7 + 6/9 =
  16. 16.5/8 + 1/2 =
  17. 17.6/8 − 1/2 =
  18. 18.2/4 − 1/7 =
  19. 19.1/9 + 1/5 =
  20. 20.2/12 + 1/2 =
  21. 21.5/8 − 1/6 =
  22. 22.3/8 − 1/3 =
  23. 23.1/2 − 3/9 =
  24. 24.1/5 − 1/12 =
  25. 25.4/7 + 8/9 =
  26. 26.2/3 − 1/2 =
  27. 27.2/6 + 1/2 =
  28. 28.5/6 + 7/11 =
  29. 29.6/7 − 2/9 =
  30. 30.2/9 + 4/10 =
  31. 31.5/8 − 1/3 =
  32. 32.3/6 + 5/10 =
  33. 33.6/8 + 1/3 =
  34. 34.2/3 + 1/2 =
  35. 35.3/10 − 2/9 =
  36. 36.3/4 + 5/7 =
  37. 37.4/12 + 5/10 =
  38. 38.4/6 − 1/3 =
  39. 39.1/7 + 7/9 =
  40. 40.2/4 + 1/2 =

Answer key

  1. 77/72
  2. 7/12
  3. 1/5
  4. 7/10
  5. 8/15
  6. 8/15
  7. 7/10
  8. 9/8
  9. 9/20
  10. 94/63
  11. 1/6
  12. 5/6
  13. 25/22
  14. 5/6
  15. 26/21
  16. 9/8
  17. 1/4
  18. 5/14
  19. 14/45
  20. 2/3
  21. 11/24
  22. 1/24
  23. 1/6
  24. 7/60
  25. 92/63
  26. 1/6
  27. 5/6
  28. 97/66
  29. 40/63
  30. 28/45
  31. 7/24
  32. 1
  33. 13/12
  34. 7/6
  35. 7/90
  36. 41/28
  37. 5/6
  38. 1/3
  39. 58/63
  40. 1

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