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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 16 · 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. 1.2/9 + 2/5 =
  2. 2.4/9 − 1/4 =
  3. 3.2/3 − 3/6 =
  4. 4.1/2 + 2/5 =
  5. 5.1/3 − 1/5 =
  6. 6.6/8 − 7/11 =
  7. 7.1/3 + 2/10 =
  8. 8.3/6 − 1/11 =
  9. 9.3/4 + 2/9 =
  10. 10.3/4 + 4/12 =
  11. 11.2/9 + 3/10 =
  12. 12.2/6 + 2/12 =
  13. 13.2/6 + 1/9 =
  14. 14.1/2 + 2/4 =
  15. 15.9/10 + 9/11 =
  16. 16.1/11 + 3/4 =
  17. 17.2/8 + 1/2 =
  18. 18.2/4 + 3/7 =
  19. 19.1/5 + 1/6 =
  20. 20.8/11 − 6/9 =
  21. 21.4/5 − 4/10 =
  22. 22.2/8 + 6/8 =
  23. 23.1/4 − 1/7 =
  24. 24.2/4 + 2/3 =
  25. 25.3/6 − 2/9 =
  26. 26.3/7 − 1/4 =
  27. 27.7/8 − 3/11 =
  28. 28.4/6 − 1/3 =
  29. 29.8/10 + 5/9 =
  30. 30.5/6 − 2/9 =
  31. 31.1/7 + 2/6 =
  32. 32.1/2 − 2/8 =
  33. 33.4/5 + 1/3 =
  34. 34.2/7 + 9/12 =
  35. 35.3/12 + 3/5 =
  36. 36.5/9 − 1/4 =
  37. 37.5/10 + 5/9 =
  38. 38.11/12 + 1/9 =
  39. 39.1/3 + 1/2 =
  40. 40.6/7 − 1/2 =

Answer key

  1. 28/45
  2. 7/36
  3. 1/6
  4. 9/10
  5. 2/15
  6. 5/44
  7. 8/15
  8. 9/22
  9. 35/36
  10. 13/12
  11. 47/90
  12. 1/2
  13. 4/9
  14. 1
  15. 189/110
  16. 37/44
  17. 3/4
  18. 13/14
  19. 11/30
  20. 2/33
  21. 2/5
  22. 1
  23. 3/28
  24. 7/6
  25. 5/18
  26. 5/28
  27. 53/88
  28. 1/3
  29. 61/45
  30. 11/18
  31. 10/21
  32. 1/4
  33. 17/15
  34. 29/28
  35. 17/20
  36. 11/36
  37. 19/18
  38. 37/36
  39. 5/6
  40. 5/14

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