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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 368 · 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. 1.1/4 − 1/5 =
  2. 2.2/3 − 5/10 =
  3. 3.3/5 − 4/7 =
  4. 4.7/9 − 7/12 =
  5. 5.10/11 − 4/10 =
  6. 6.2/6 + 1/2 =
  7. 7.2/7 + 3/4 =
  8. 8.4/5 − 3/6 =
  9. 9.2/3 + 9/12 =
  10. 10.1/6 + 2/9 =
  11. 11.1/2 + 3/5 =
  12. 12.7/11 + 2/5 =
  13. 13.1/5 − 1/10 =
  14. 14.2/8 − 2/11 =
  15. 15.5/8 + 1/2 =
  16. 16.2/5 + 2/8 =
  17. 17.1/2 − 1/3 =
  18. 18.4/9 + 1/2 =
  19. 19.4/5 + 3/7 =
  20. 20.3/11 + 3/7 =
  21. 21.6/11 − 1/2 =
  22. 22.4/6 + 4/9 =
  23. 23.1/7 + 1/2 =
  24. 24.1/11 + 5/6 =
  25. 25.5/8 + 1/3 =
  26. 26.2/4 + 2/4 =
  27. 27.1/5 + 5/7 =
  28. 28.2/7 + 9/10 =
  29. 29.8/11 − 2/5 =
  30. 30.2/5 + 2/5 =
  31. 31.2/3 − 1/3 =
  32. 32.2/6 + 1/2 =
  33. 33.8/12 + 1/4 =
  34. 34.4/6 + 3/8 =
  35. 35.2/6 + 8/11 =
  36. 36.5/8 + 4/6 =
  37. 37.2/6 + 6/11 =
  38. 38.6/7 + 3/5 =
  39. 39.6/7 − 5/9 =
  40. 40.1/3 + 1/3 =

Answer key

  1. 1/20
  2. 1/6
  3. 1/35
  4. 7/36
  5. 28/55
  6. 5/6
  7. 29/28
  8. 3/10
  9. 17/12
  10. 7/18
  11. 11/10
  12. 57/55
  13. 1/10
  14. 3/44
  15. 9/8
  16. 13/20
  17. 1/6
  18. 17/18
  19. 43/35
  20. 54/77
  21. 1/22
  22. 10/9
  23. 9/14
  24. 61/66
  25. 23/24
  26. 1
  27. 32/35
  28. 83/70
  29. 18/55
  30. 4/5
  31. 1/3
  32. 5/6
  33. 11/12
  34. 25/24
  35. 35/33
  36. 31/24
  37. 29/33
  38. 51/35
  39. 19/63
  40. 2/3

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