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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 821 · 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. 1.5/6 + 4/7 =
  2. 2.4/6 − 1/3 =
  3. 3.3/5 + 1/3 =
  4. 4.1/4 − 1/7 =
  5. 5.1/2 + 8/11 =
  6. 6.1/2 + 1/7 =
  7. 7.2/5 + 1/3 =
  8. 8.2/5 − 1/4 =
  9. 9.5/11 − 3/10 =
  10. 10.2/4 + 1/2 =
  11. 11.1/2 + 1/2 =
  12. 12.3/4 + 1/4 =
  13. 13.3/10 + 2/4 =
  14. 14.4/11 − 1/3 =
  15. 15.3/4 − 2/4 =
  16. 16.1/4 + 1/7 =
  17. 17.1/2 − 2/7 =
  18. 18.2/3 − 3/7 =
  19. 19.1/5 − 1/9 =
  20. 20.2/8 + 1/4 =
  21. 21.4/10 + 11/12 =
  22. 22.2/3 + 1/11 =
  23. 23.10/12 − 7/9 =
  24. 24.3/8 + 3/8 =
  25. 25.7/8 − 6/9 =
  26. 26.3/6 + 1/9 =
  27. 27.1/9 + 4/8 =
  28. 28.3/12 + 1/3 =
  29. 29.8/10 − 8/12 =
  30. 30.2/6 + 1/2 =
  31. 31.3/6 + 2/4 =
  32. 32.2/5 + 4/9 =
  33. 33.5/6 − 1/5 =
  34. 34.3/4 − 3/5 =
  35. 35.3/4 + 1/2 =
  36. 36.2/3 + 5/6 =
  37. 37.1/4 + 1/9 =
  38. 38.3/5 + 1/7 =
  39. 39.1/3 + 2/10 =
  40. 40.3/7 − 1/3 =

Answer key

  1. 59/42
  2. 1/3
  3. 14/15
  4. 3/28
  5. 27/22
  6. 9/14
  7. 11/15
  8. 3/20
  9. 17/110
  10. 1
  11. 1
  12. 1
  13. 4/5
  14. 1/33
  15. 1/4
  16. 11/28
  17. 3/14
  18. 5/21
  19. 4/45
  20. 1/2
  21. 79/60
  22. 25/33
  23. 1/18
  24. 3/4
  25. 5/24
  26. 11/18
  27. 11/18
  28. 7/12
  29. 2/15
  30. 5/6
  31. 1
  32. 38/45
  33. 19/30
  34. 3/20
  35. 5/4
  36. 3/2
  37. 13/36
  38. 26/35
  39. 8/15
  40. 2/21

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