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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 45 · 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. 1.2/3 − 5/8 =
  2. 2.1/3 − 3/12 =
  3. 3.8/11 + 1/6 =
  4. 4.5/7 + 1/2 =
  5. 5.3/5 + 5/7 =
  6. 6.1/5 − 1/12 =
  7. 7.3/11 + 3/6 =
  8. 8.1/2 − 1/9 =
  9. 9.8/9 + 2/5 =
  10. 10.1/2 + 3/8 =
  11. 11.3/5 + 10/11 =
  12. 12.3/8 + 3/4 =
  13. 13.3/6 + 3/5 =
  14. 14.7/8 + 2/8 =
  15. 15.2/4 + 2/5 =
  16. 16.3/12 − 1/7 =
  17. 17.7/9 + 7/9 =
  18. 18.3/4 − 2/4 =
  19. 19.2/3 − 2/7 =
  20. 20.1/11 + 6/10 =
  21. 21.7/8 + 7/8 =
  22. 22.5/8 − 2/4 =
  23. 23.6/9 + 5/9 =
  24. 24.2/10 − 1/6 =
  25. 25.8/10 + 3/5 =
  26. 26.1/11 + 2/12 =
  27. 27.2/3 − 1/11 =
  28. 28.6/9 − 5/10 =
  29. 29.1/2 + 3/9 =
  30. 30.1/2 + 3/4 =
  31. 31.6/11 + 1/3 =
  32. 32.9/10 − 4/6 =
  33. 33.3/6 + 2/4 =
  34. 34.5/12 − 1/4 =
  35. 35.2/6 + 6/7 =
  36. 36.3/4 − 5/7 =
  37. 37.2/5 − 1/3 =
  38. 38.3/12 + 1/3 =
  39. 39.4/5 + 1/6 =
  40. 40.1/5 + 1/2 =

Answer key

  1. 1/24
  2. 1/12
  3. 59/66
  4. 17/14
  5. 46/35
  6. 7/60
  7. 17/22
  8. 7/18
  9. 58/45
  10. 7/8
  11. 83/55
  12. 9/8
  13. 11/10
  14. 9/8
  15. 9/10
  16. 3/28
  17. 14/9
  18. 1/4
  19. 8/21
  20. 38/55
  21. 7/4
  22. 1/8
  23. 11/9
  24. 1/30
  25. 7/5
  26. 17/66
  27. 19/33
  28. 1/6
  29. 5/6
  30. 5/4
  31. 29/33
  32. 7/30
  33. 1
  34. 1/6
  35. 25/21
  36. 1/28
  37. 1/15
  38. 7/12
  39. 29/30
  40. 7/10

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