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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 497 · 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. 1.6/8 + 3/12 =
  2. 2.1/7 + 1/7 =
  3. 3.4/6 + 5/9 =
  4. 4.9/10 − 1/3 =
  5. 5.4/7 − 1/4 =
  6. 6.4/6 + 10/11 =
  7. 7.5/10 − 2/5 =
  8. 8.1/3 + 3/4 =
  9. 9.3/6 + 1/11 =
  10. 10.2/4 + 1/12 =
  11. 11.2/4 + 1/3 =
  12. 12.3/5 + 3/5 =
  13. 13.2/8 + 3/4 =
  14. 14.2/11 + 2/10 =
  15. 15.6/9 + 5/9 =
  16. 16.1/4 + 2/7 =
  17. 17.1/2 + 1/5 =
  18. 18.4/5 − 3/9 =
  19. 19.3/9 + 1/2 =
  20. 20.3/9 + 2/9 =
  21. 21.2/4 + 2/4 =
  22. 22.2/3 + 6/8 =
  23. 23.5/7 − 1/3 =
  24. 24.1/2 − 1/8 =
  25. 25.3/5 − 2/7 =
  26. 26.5/8 − 1/2 =
  27. 27.6/10 + 1/3 =
  28. 28.1/6 + 7/8 =
  29. 29.2/6 − 3/10 =
  30. 30.3/5 − 1/3 =
  31. 31.1/5 − 1/6 =
  32. 32.1/2 + 7/11 =
  33. 33.8/12 − 4/8 =
  34. 34.9/10 + 2/6 =
  35. 35.2/10 + 4/6 =
  36. 36.2/4 − 1/4 =
  37. 37.7/10 − 2/3 =
  38. 38.1/11 + 3/10 =
  39. 39.1/2 + 8/12 =
  40. 40.1/2 + 1/4 =

Answer key

  1. 1
  2. 2/7
  3. 11/9
  4. 17/30
  5. 9/28
  6. 52/33
  7. 1/10
  8. 13/12
  9. 13/22
  10. 7/12
  11. 5/6
  12. 6/5
  13. 1
  14. 21/55
  15. 11/9
  16. 15/28
  17. 7/10
  18. 7/15
  19. 5/6
  20. 5/9
  21. 1
  22. 17/12
  23. 8/21
  24. 3/8
  25. 11/35
  26. 1/8
  27. 14/15
  28. 25/24
  29. 1/30
  30. 4/15
  31. 1/30
  32. 25/22
  33. 1/6
  34. 37/30
  35. 13/15
  36. 1/4
  37. 1/30
  38. 43/110
  39. 7/6
  40. 3/4

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