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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 490 · 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. 1.4/6 − 1/8 =
  2. 2.1/2 + 4/6 =
  3. 3.4/10 − 1/11 =
  4. 4.3/5 + 1/5 =
  5. 5.1/3 + 2/3 =
  6. 6.2/5 + 2/10 =
  7. 7.8/10 − 7/11 =
  8. 8.8/10 − 1/2 =
  9. 9.4/5 − 2/3 =
  10. 10.5/12 − 3/10 =
  11. 11.3/5 + 6/8 =
  12. 12.9/11 − 8/11 =
  13. 13.8/12 + 9/11 =
  14. 14.3/7 − 1/8 =
  15. 15.2/6 + 11/12 =
  16. 16.1/2 + 2/6 =
  17. 17.8/10 + 3/9 =
  18. 18.1/3 + 9/12 =
  19. 19.1/10 + 2/12 =
  20. 20.2/10 + 3/12 =
  21. 21.3/4 − 2/9 =
  22. 22.4/6 − 1/3 =
  23. 23.4/5 − 3/8 =
  24. 24.5/6 − 3/11 =
  25. 25.9/12 − 1/2 =
  26. 26.5/6 − 1/4 =
  27. 27.2/6 + 9/12 =
  28. 28.5/10 + 2/4 =
  29. 29.6/9 + 7/8 =
  30. 30.1/2 − 1/5 =
  31. 31.6/11 + 2/5 =
  32. 32.2/6 + 1/3 =
  33. 33.1/4 + 2/8 =
  34. 34.1/2 − 3/7 =
  35. 35.1/3 + 3/9 =
  36. 36.1/3 + 6/11 =
  37. 37.2/3 − 2/6 =
  38. 38.5/12 − 1/4 =
  39. 39.5/7 − 3/7 =
  40. 40.3/12 + 3/8 =

Answer key

  1. 13/24
  2. 7/6
  3. 17/55
  4. 4/5
  5. 1
  6. 3/5
  7. 9/55
  8. 3/10
  9. 2/15
  10. 7/60
  11. 27/20
  12. 1/11
  13. 49/33
  14. 17/56
  15. 5/4
  16. 5/6
  17. 17/15
  18. 13/12
  19. 4/15
  20. 9/20
  21. 19/36
  22. 1/3
  23. 17/40
  24. 37/66
  25. 1/4
  26. 7/12
  27. 13/12
  28. 1
  29. 37/24
  30. 3/10
  31. 52/55
  32. 2/3
  33. 1/2
  34. 1/14
  35. 2/3
  36. 29/33
  37. 1/3
  38. 1/6
  39. 2/7
  40. 5/8

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