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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 397 · 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. 1.1/2 − 2/7 =
  2. 2.2/4 − 1/10 =
  3. 3.1/4 + 7/9 =
  4. 4.1/7 + 3/5 =
  5. 5.3/5 − 6/11 =
  6. 6.1/3 + 4/10 =
  7. 7.3/4 + 2/3 =
  8. 8.9/10 + 1/4 =
  9. 9.1/5 + 1/7 =
  10. 10.5/7 − 1/5 =
  11. 11.3/9 − 1/7 =
  12. 12.3/7 + 1/2 =
  13. 13.5/7 − 2/10 =
  14. 14.1/7 + 2/5 =
  15. 15.2/4 + 6/10 =
  16. 16.3/6 + 1/10 =
  17. 17.2/8 + 3/10 =
  18. 18.1/8 + 1/4 =
  19. 19.6/7 + 1/8 =
  20. 20.1/5 + 4/6 =
  21. 21.1/9 + 3/11 =
  22. 22.1/6 + 4/9 =
  23. 23.1/2 − 2/5 =
  24. 24.7/8 + 2/6 =
  25. 25.5/6 + 11/12 =
  26. 26.2/3 + 2/11 =
  27. 27.2/3 + 1/6 =
  28. 28.1/4 + 9/11 =
  29. 29.9/10 + 2/5 =
  30. 30.8/11 − 1/4 =
  31. 31.2/4 − 1/8 =
  32. 32.1/3 + 1/12 =
  33. 33.1/7 + 6/7 =
  34. 34.2/4 + 6/12 =
  35. 35.1/2 + 2/3 =
  36. 36.1/8 + 2/11 =
  37. 37.2/4 + 3/10 =
  38. 38.2/3 + 2/8 =
  39. 39.8/11 + 5/11 =
  40. 40.1/5 + 1/12 =

Answer key

  1. 3/14
  2. 2/5
  3. 37/36
  4. 26/35
  5. 3/55
  6. 11/15
  7. 17/12
  8. 23/20
  9. 12/35
  10. 18/35
  11. 4/21
  12. 13/14
  13. 18/35
  14. 19/35
  15. 11/10
  16. 3/5
  17. 11/20
  18. 3/8
  19. 55/56
  20. 13/15
  21. 38/99
  22. 11/18
  23. 1/10
  24. 29/24
  25. 7/4
  26. 28/33
  27. 5/6
  28. 47/44
  29. 13/10
  30. 21/44
  31. 3/8
  32. 5/12
  33. 1
  34. 1
  35. 7/6
  36. 27/88
  37. 4/5
  38. 11/12
  39. 13/11
  40. 17/60

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