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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 283 · 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. 1.1/2 + 9/12 =
  2. 2.1/2 + 5/12 =
  3. 3.3/12 + 7/10 =
  4. 4.9/11 + 4/8 =
  5. 5.10/12 − 4/5 =
  6. 6.3/4 + 2/8 =
  7. 7.1/2 + 7/11 =
  8. 8.4/10 − 1/3 =
  9. 9.8/10 + 5/9 =
  10. 10.8/9 + 2/8 =
  11. 11.6/7 + 1/3 =
  12. 12.4/6 + 2/3 =
  13. 13.1/2 + 9/10 =
  14. 14.1/2 − 2/10 =
  15. 15.7/9 + 1/3 =
  16. 16.1/2 − 4/11 =
  17. 17.2/3 + 7/9 =
  18. 18.9/10 − 1/2 =
  19. 19.2/6 + 1/6 =
  20. 20.2/8 + 3/4 =
  21. 21.4/7 − 1/4 =
  22. 22.3/4 + 1/4 =
  23. 23.2/7 + 1/2 =
  24. 24.4/12 + 2/10 =
  25. 25.1/2 + 3/4 =
  26. 26.3/7 + 9/11 =
  27. 27.4/8 + 9/12 =
  28. 28.2/4 − 1/3 =
  29. 29.4/7 − 2/9 =
  30. 30.1/4 + 6/7 =
  31. 31.2/3 + 3/7 =
  32. 32.9/11 − 5/7 =
  33. 33.1/6 − 1/7 =
  34. 34.2/11 + 4/6 =
  35. 35.2/7 + 10/12 =
  36. 36.7/10 + 5/8 =
  37. 37.6/8 + 4/10 =
  38. 38.4/7 − 4/9 =
  39. 39.9/11 − 4/6 =
  40. 40.2/5 + 1/4 =

Answer key

  1. 5/4
  2. 11/12
  3. 19/20
  4. 29/22
  5. 1/30
  6. 1
  7. 25/22
  8. 1/15
  9. 61/45
  10. 41/36
  11. 25/21
  12. 4/3
  13. 7/5
  14. 3/10
  15. 10/9
  16. 3/22
  17. 13/9
  18. 2/5
  19. 1/2
  20. 1
  21. 9/28
  22. 1
  23. 11/14
  24. 8/15
  25. 5/4
  26. 96/77
  27. 5/4
  28. 1/6
  29. 22/63
  30. 31/28
  31. 23/21
  32. 8/77
  33. 1/42
  34. 28/33
  35. 47/42
  36. 53/40
  37. 23/20
  38. 8/63
  39. 5/33
  40. 13/20

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