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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 876 · 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. 1.3/12 + 1/4 =
  2. 2.3/5 + 4/9 =
  3. 3.6/7 + 7/9 =
  4. 4.3/11 + 10/12 =
  5. 5.2/3 + 1/4 =
  6. 6.5/12 − 1/8 =
  7. 7.2/8 + 3/6 =
  8. 8.4/7 − 2/6 =
  9. 9.3/4 + 4/7 =
  10. 10.3/4 + 2/4 =
  11. 11.6/11 − 1/3 =
  12. 12.5/10 + 3/6 =
  13. 13.2/3 + 3/10 =
  14. 14.10/12 + 7/11 =
  15. 15.2/5 − 1/4 =
  16. 16.8/10 + 2/9 =
  17. 17.1/2 − 5/12 =
  18. 18.1/3 + 6/7 =
  19. 19.2/4 + 2/12 =
  20. 20.1/12 + 1/2 =
  21. 21.3/4 − 4/8 =
  22. 22.4/12 + 3/4 =
  23. 23.1/2 + 3/7 =
  24. 24.3/4 + 6/11 =
  25. 25.6/7 + 6/10 =
  26. 26.5/9 + 4/6 =
  27. 27.1/2 + 1/4 =
  28. 28.1/3 + 2/4 =
  29. 29.3/5 − 2/4 =
  30. 30.1/11 + 3/6 =
  31. 31.2/6 + 1/7 =
  32. 32.4/6 + 6/10 =
  33. 33.1/2 − 1/6 =
  34. 34.2/4 − 3/12 =
  35. 35.9/12 − 1/5 =
  36. 36.4/9 + 2/4 =
  37. 37.3/4 + 1/9 =
  38. 38.2/9 + 1/2 =
  39. 39.2/7 − 1/4 =
  40. 40.5/7 + 3/11 =

Answer key

  1. 1/2
  2. 47/45
  3. 103/63
  4. 73/66
  5. 11/12
  6. 7/24
  7. 3/4
  8. 5/21
  9. 37/28
  10. 5/4
  11. 7/33
  12. 1
  13. 29/30
  14. 97/66
  15. 3/20
  16. 46/45
  17. 1/12
  18. 25/21
  19. 2/3
  20. 7/12
  21. 1/4
  22. 13/12
  23. 13/14
  24. 57/44
  25. 51/35
  26. 11/9
  27. 3/4
  28. 5/6
  29. 1/10
  30. 13/22
  31. 10/21
  32. 19/15
  33. 1/3
  34. 1/4
  35. 11/20
  36. 17/18
  37. 31/36
  38. 13/18
  39. 1/28
  40. 76/77

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