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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 511 · 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. 1.1/2 − 3/9 =
  2. 2.2/3 − 3/10 =
  3. 3.1/4 + 5/7 =
  4. 4.3/6 − 5/12 =
  5. 5.1/2 + 10/11 =
  6. 6.4/7 + 1/3 =
  7. 7.3/4 − 2/4 =
  8. 8.3/8 − 2/10 =
  9. 9.4/12 + 3/6 =
  10. 10.4/8 − 1/5 =
  11. 11.6/10 + 2/10 =
  12. 12.4/6 + 6/12 =
  13. 13.2/10 + 4/8 =
  14. 14.2/10 + 3/12 =
  15. 15.3/8 + 4/10 =
  16. 16.1/8 + 3/5 =
  17. 17.5/8 + 8/10 =
  18. 18.1/3 − 2/11 =
  19. 19.1/2 + 1/2 =
  20. 20.6/11 − 5/10 =
  21. 21.1/8 + 1/5 =
  22. 22.3/4 − 1/3 =
  23. 23.1/2 − 2/6 =
  24. 24.4/12 + 2/3 =
  25. 25.9/12 + 2/4 =
  26. 26.1/12 + 3/8 =
  27. 27.7/8 − 1/3 =
  28. 28.2/3 + 1/5 =
  29. 29.1/11 + 1/4 =
  30. 30.3/5 + 2/4 =
  31. 31.5/9 + 1/2 =
  32. 32.6/12 + 1/2 =
  33. 33.4/8 − 3/12 =
  34. 34.3/7 + 1/4 =
  35. 35.3/6 + 1/3 =
  36. 36.8/11 + 2/11 =
  37. 37.7/11 − 3/5 =
  38. 38.1/4 + 10/11 =
  39. 39.3/11 + 3/6 =
  40. 40.4/6 − 1/2 =

Answer key

  1. 1/6
  2. 11/30
  3. 27/28
  4. 1/12
  5. 31/22
  6. 19/21
  7. 1/4
  8. 7/40
  9. 5/6
  10. 3/10
  11. 4/5
  12. 7/6
  13. 7/10
  14. 9/20
  15. 31/40
  16. 29/40
  17. 57/40
  18. 5/33
  19. 1
  20. 1/22
  21. 13/40
  22. 5/12
  23. 1/6
  24. 1
  25. 5/4
  26. 11/24
  27. 13/24
  28. 13/15
  29. 15/44
  30. 11/10
  31. 19/18
  32. 1
  33. 1/4
  34. 19/28
  35. 5/6
  36. 10/11
  37. 2/55
  38. 51/44
  39. 17/22
  40. 1/6

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