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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 540 · 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. 1.3/4 − 1/4 =
  2. 2.2/3 − 1/6 =
  3. 3.2/8 + 4/12 =
  4. 4.7/12 − 1/2 =
  5. 5.4/8 + 8/10 =
  6. 6.4/11 − 3/12 =
  7. 7.3/7 − 2/9 =
  8. 8.4/11 − 2/10 =
  9. 9.1/2 + 5/11 =
  10. 10.4/6 + 6/12 =
  11. 11.1/3 + 2/9 =
  12. 12.2/3 + 2/10 =
  13. 13.1/9 + 1/4 =
  14. 14.2/4 + 3/5 =
  15. 15.7/8 − 5/6 =
  16. 16.7/9 + 3/4 =
  17. 17.1/2 − 3/9 =
  18. 18.6/10 + 2/6 =
  19. 19.3/7 − 5/12 =
  20. 20.1/5 + 1/9 =
  21. 21.5/8 + 1/4 =
  22. 22.4/10 + 1/9 =
  23. 23.1/2 − 1/3 =
  24. 24.1/2 + 1/7 =
  25. 25.10/11 − 6/8 =
  26. 26.1/3 − 3/11 =
  27. 27.2/3 + 1/8 =
  28. 28.6/12 + 4/6 =
  29. 29.1/2 − 3/11 =
  30. 30.2/4 + 2/11 =
  31. 31.1/4 + 5/9 =
  32. 32.3/4 − 4/8 =
  33. 33.4/11 + 6/9 =
  34. 34.8/9 + 1/2 =
  35. 35.4/5 + 1/3 =
  36. 36.1/2 + 5/9 =
  37. 37.5/11 + 6/8 =
  38. 38.3/4 + 2/3 =
  39. 39.1/2 + 1/2 =
  40. 40.4/9 − 1/6 =

Answer key

  1. 1/2
  2. 1/2
  3. 7/12
  4. 1/12
  5. 13/10
  6. 5/44
  7. 13/63
  8. 9/55
  9. 21/22
  10. 7/6
  11. 5/9
  12. 13/15
  13. 13/36
  14. 11/10
  15. 1/24
  16. 55/36
  17. 1/6
  18. 14/15
  19. 1/84
  20. 14/45
  21. 7/8
  22. 23/45
  23. 1/6
  24. 9/14
  25. 7/44
  26. 2/33
  27. 19/24
  28. 7/6
  29. 5/22
  30. 15/22
  31. 29/36
  32. 1/4
  33. 34/33
  34. 25/18
  35. 17/15
  36. 19/18
  37. 53/44
  38. 17/12
  39. 1
  40. 5/18

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