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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 454 · 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. 1.1/5 + 2/8 =
  2. 2.3/4 − 1/2 =
  3. 3.10/12 − 3/9 =
  4. 4.2/7 + 1/2 =
  5. 5.5/6 − 4/9 =
  6. 6.4/11 + 5/8 =
  7. 7.2/3 + 5/6 =
  8. 8.1/4 + 1/2 =
  9. 9.9/12 + 2/3 =
  10. 10.1/3 + 3/6 =
  11. 11.1/5 − 1/11 =
  12. 12.9/11 − 8/11 =
  13. 13.10/12 + 2/10 =
  14. 14.6/7 − 2/3 =
  15. 15.6/11 + 5/9 =
  16. 16.8/9 + 1/5 =
  17. 17.1/2 − 1/9 =
  18. 18.4/5 − 1/2 =
  19. 19.4/5 − 1/5 =
  20. 20.2/6 − 1/5 =
  21. 21.5/8 + 3/4 =
  22. 22.1/4 + 7/10 =
  23. 23.1/5 + 1/11 =
  24. 24.7/8 − 2/5 =
  25. 25.1/11 + 1/6 =
  26. 26.10/11 − 1/2 =
  27. 27.4/10 + 1/9 =
  28. 28.2/9 + 3/6 =
  29. 29.7/8 + 7/8 =
  30. 30.2/4 + 2/10 =
  31. 31.1/3 + 8/11 =
  32. 32.8/12 + 1/4 =
  33. 33.1/9 + 2/9 =
  34. 34.2/3 − 3/5 =
  35. 35.2/9 + 1/6 =
  36. 36.1/5 + 4/5 =
  37. 37.1/2 + 10/12 =
  38. 38.5/8 − 4/9 =
  39. 39.1/2 + 2/12 =
  40. 40.3/6 + 1/4 =

Answer key

  1. 9/20
  2. 1/4
  3. 1/2
  4. 11/14
  5. 7/18
  6. 87/88
  7. 3/2
  8. 3/4
  9. 17/12
  10. 5/6
  11. 6/55
  12. 1/11
  13. 31/30
  14. 4/21
  15. 109/99
  16. 49/45
  17. 7/18
  18. 3/10
  19. 3/5
  20. 2/15
  21. 11/8
  22. 19/20
  23. 16/55
  24. 19/40
  25. 17/66
  26. 9/22
  27. 23/45
  28. 13/18
  29. 7/4
  30. 7/10
  31. 35/33
  32. 11/12
  33. 1/3
  34. 1/15
  35. 7/18
  36. 1
  37. 4/3
  38. 13/72
  39. 2/3
  40. 3/4

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