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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 681 · 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. 1.3/5 − 3/8 =
  2. 2.3/5 − 2/5 =
  3. 3.1/2 + 3/11 =
  4. 4.3/4 + 5/6 =
  5. 5.8/10 − 2/7 =
  6. 6.3/6 − 1/6 =
  7. 7.1/7 + 3/7 =
  8. 8.3/5 + 1/9 =
  9. 9.9/11 − 3/9 =
  10. 10.7/10 − 3/11 =
  11. 11.7/10 + 2/5 =
  12. 12.4/8 − 2/12 =
  13. 13.3/5 − 1/2 =
  14. 14.9/11 + 2/10 =
  15. 15.8/9 − 7/8 =
  16. 16.4/5 − 3/5 =
  17. 17.2/3 − 2/6 =
  18. 18.1/4 + 11/12 =
  19. 19.2/3 + 1/2 =
  20. 20.3/6 + 3/6 =
  21. 21.7/10 − 3/6 =
  22. 22.2/3 − 1/2 =
  23. 23.2/12 + 2/4 =
  24. 24.3/4 − 3/7 =
  25. 25.1/3 − 3/10 =
  26. 26.2/4 − 1/3 =
  27. 27.1/2 + 8/10 =
  28. 28.11/12 − 1/3 =
  29. 29.2/3 + 2/5 =
  30. 30.1/9 + 1/2 =
  31. 31.9/11 − 1/10 =
  32. 32.7/9 − 2/5 =
  33. 33.3/4 + 3/8 =
  34. 34.2/8 + 7/8 =
  35. 35.3/10 + 2/4 =
  36. 36.3/4 + 1/3 =
  37. 37.3/4 + 2/4 =
  38. 38.3/4 + 2/4 =
  39. 39.1/2 + 3/4 =
  40. 40.10/11 + 5/11 =

Answer key

  1. 9/40
  2. 1/5
  3. 17/22
  4. 19/12
  5. 18/35
  6. 1/3
  7. 4/7
  8. 32/45
  9. 16/33
  10. 47/110
  11. 11/10
  12. 1/3
  13. 1/10
  14. 56/55
  15. 1/72
  16. 1/5
  17. 1/3
  18. 7/6
  19. 7/6
  20. 1
  21. 1/5
  22. 1/6
  23. 2/3
  24. 9/28
  25. 1/30
  26. 1/6
  27. 13/10
  28. 7/12
  29. 16/15
  30. 11/18
  31. 79/110
  32. 17/45
  33. 9/8
  34. 9/8
  35. 4/5
  36. 13/12
  37. 5/4
  38. 5/4
  39. 5/4
  40. 15/11

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