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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 242 · 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. 1.8/12 + 4/12 =
  2. 2.2/12 + 1/3 =
  3. 3.7/10 + 1/8 =
  4. 4.2/3 + 3/6 =
  5. 5.1/3 + 1/2 =
  6. 6.1/8 + 2/5 =
  7. 7.2/3 + 2/4 =
  8. 8.2/7 + 7/9 =
  9. 9.7/11 − 1/10 =
  10. 10.2/5 − 2/7 =
  11. 11.5/6 + 3/5 =
  12. 12.2/4 + 1/2 =
  13. 13.10/12 − 5/9 =
  14. 14.9/12 − 5/8 =
  15. 15.3/4 − 3/10 =
  16. 16.3/8 + 2/3 =
  17. 17.5/10 − 1/7 =
  18. 18.1/3 + 4/12 =
  19. 19.1/2 + 1/3 =
  20. 20.5/7 + 1/4 =
  21. 21.1/2 − 1/3 =
  22. 22.6/10 + 2/11 =
  23. 23.3/5 − 1/2 =
  24. 24.4/6 − 1/2 =
  25. 25.3/4 + 1/5 =
  26. 26.1/2 + 4/11 =
  27. 27.6/12 − 1/4 =
  28. 28.5/6 − 1/3 =
  29. 29.1/3 + 1/3 =
  30. 30.4/5 − 1/4 =
  31. 31.1/2 − 1/4 =
  32. 32.5/7 − 3/8 =
  33. 33.2/10 + 1/7 =
  34. 34.2/3 + 4/7 =
  35. 35.3/4 − 6/12 =
  36. 36.1/2 + 8/11 =
  37. 37.1/3 + 1/6 =
  38. 38.1/4 + 3/4 =
  39. 39.1/6 + 1/4 =
  40. 40.1/11 + 1/9 =

Answer key

  1. 1
  2. 1/2
  3. 33/40
  4. 7/6
  5. 5/6
  6. 21/40
  7. 7/6
  8. 67/63
  9. 59/110
  10. 4/35
  11. 43/30
  12. 1
  13. 5/18
  14. 1/8
  15. 9/20
  16. 25/24
  17. 5/14
  18. 2/3
  19. 5/6
  20. 27/28
  21. 1/6
  22. 43/55
  23. 1/10
  24. 1/6
  25. 19/20
  26. 19/22
  27. 1/4
  28. 1/2
  29. 2/3
  30. 11/20
  31. 1/4
  32. 19/56
  33. 12/35
  34. 26/21
  35. 1/4
  36. 27/22
  37. 1/2
  38. 1
  39. 5/12
  40. 20/99

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