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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 218 · 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. 1.2/5 − 1/4 =
  2. 2.8/12 − 1/8 =
  3. 3.3/4 − 1/2 =
  4. 4.3/4 + 9/12 =
  5. 5.3/5 − 2/4 =
  6. 6.6/10 + 3/12 =
  7. 7.7/8 − 3/4 =
  8. 8.1/2 − 2/6 =
  9. 9.5/7 − 2/12 =
  10. 10.3/4 + 2/6 =
  11. 11.1/3 − 1/5 =
  12. 12.1/10 + 3/12 =
  13. 13.4/9 − 1/7 =
  14. 14.2/5 + 8/10 =
  15. 15.1/10 + 1/11 =
  16. 16.2/9 − 1/5 =
  17. 17.2/9 + 1/2 =
  18. 18.9/10 + 1/10 =
  19. 19.3/6 − 2/6 =
  20. 20.1/2 + 2/11 =
  21. 21.2/5 + 7/10 =
  22. 22.1/2 + 7/10 =
  23. 23.1/11 + 1/2 =
  24. 24.1/3 + 3/11 =
  25. 25.3/4 + 5/10 =
  26. 26.2/5 + 2/9 =
  27. 27.3/4 + 6/10 =
  28. 28.6/11 − 1/2 =
  29. 29.1/12 + 3/9 =
  30. 30.1/3 + 4/7 =
  31. 31.3/8 − 3/12 =
  32. 32.5/11 + 2/5 =
  33. 33.11/12 − 3/12 =
  34. 34.3/10 + 5/8 =
  35. 35.1/2 + 1/2 =
  36. 36.6/11 − 1/5 =
  37. 37.1/2 + 3/4 =
  38. 38.7/12 − 2/5 =
  39. 39.2/11 + 3/5 =
  40. 40.5/11 + 1/2 =

Answer key

  1. 3/20
  2. 13/24
  3. 1/4
  4. 3/2
  5. 1/10
  6. 17/20
  7. 1/8
  8. 1/6
  9. 23/42
  10. 13/12
  11. 2/15
  12. 7/20
  13. 19/63
  14. 6/5
  15. 21/110
  16. 1/45
  17. 13/18
  18. 1
  19. 1/6
  20. 15/22
  21. 11/10
  22. 6/5
  23. 13/22
  24. 20/33
  25. 5/4
  26. 28/45
  27. 27/20
  28. 1/22
  29. 5/12
  30. 19/21
  31. 1/8
  32. 47/55
  33. 2/3
  34. 37/40
  35. 1
  36. 19/55
  37. 5/4
  38. 11/60
  39. 43/55
  40. 21/22

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