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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 352 · 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. 1.7/8 − 3/11 =
  2. 2.7/12 − 1/7 =
  3. 3.6/7 + 7/9 =
  4. 4.2/6 + 6/9 =
  5. 5.2/7 + 1/2 =
  6. 6.4/7 − 1/2 =
  7. 7.1/2 + 3/9 =
  8. 8.1/3 + 2/3 =
  9. 9.5/8 − 1/3 =
  10. 10.1/2 + 5/10 =
  11. 11.4/7 − 1/3 =
  12. 12.2/6 + 2/12 =
  13. 13.11/12 − 1/3 =
  14. 14.4/5 + 2/7 =
  15. 15.3/5 − 2/9 =
  16. 16.1/3 + 1/11 =
  17. 17.1/7 + 1/2 =
  18. 18.6/8 − 1/3 =
  19. 19.2/6 + 1/5 =
  20. 20.7/8 + 7/8 =
  21. 21.1/2 + 1/12 =
  22. 22.1/8 + 4/5 =
  23. 23.1/2 + 3/6 =
  24. 24.2/7 + 5/12 =
  25. 25.6/11 + 8/9 =
  26. 26.1/4 + 2/3 =
  27. 27.10/12 + 9/10 =
  28. 28.3/6 − 1/3 =
  29. 29.2/5 + 4/10 =
  30. 30.4/11 − 1/6 =
  31. 31.2/9 + 1/8 =
  32. 32.3/4 − 7/10 =
  33. 33.3/8 + 8/11 =
  34. 34.11/12 + 1/4 =
  35. 35.3/4 − 3/7 =
  36. 36.4/9 + 2/5 =
  37. 37.2/3 + 2/3 =
  38. 38.1/2 − 1/7 =
  39. 39.4/7 + 2/7 =
  40. 40.9/12 + 3/4 =

Answer key

  1. 53/88
  2. 37/84
  3. 103/63
  4. 1
  5. 11/14
  6. 1/14
  7. 5/6
  8. 1
  9. 7/24
  10. 1
  11. 5/21
  12. 1/2
  13. 7/12
  14. 38/35
  15. 17/45
  16. 14/33
  17. 9/14
  18. 5/12
  19. 8/15
  20. 7/4
  21. 7/12
  22. 37/40
  23. 1
  24. 59/84
  25. 142/99
  26. 11/12
  27. 26/15
  28. 1/6
  29. 4/5
  30. 13/66
  31. 25/72
  32. 1/20
  33. 97/88
  34. 7/6
  35. 9/28
  36. 38/45
  37. 4/3
  38. 5/14
  39. 6/7
  40. 3/2

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