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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 447 · 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 + 4/12 =
  2. 2.6/8 + 3/4 =
  3. 3.2/11 + 5/10 =
  4. 4.2/5 + 2/3 =
  5. 5.2/3 − 2/6 =
  6. 6.3/7 − 2/12 =
  7. 7.4/5 + 2/8 =
  8. 8.6/7 + 3/8 =
  9. 9.2/8 + 5/11 =
  10. 10.1/5 + 4/8 =
  11. 11.9/12 + 2/6 =
  12. 12.4/6 − 4/8 =
  13. 13.7/8 + 4/7 =
  14. 14.1/8 + 1/2 =
  15. 15.2/7 + 4/10 =
  16. 16.3/5 − 3/9 =
  17. 17.1/4 − 1/11 =
  18. 18.8/10 + 1/4 =
  19. 19.7/8 + 1/3 =
  20. 20.1/2 − 1/11 =
  21. 21.3/7 − 1/4 =
  22. 22.6/7 − 1/6 =
  23. 23.3/6 − 2/5 =
  24. 24.1/6 + 5/11 =
  25. 25.3/4 − 2/3 =
  26. 26.8/10 + 1/12 =
  27. 27.1/2 + 4/5 =
  28. 28.1/2 + 2/11 =
  29. 29.1/2 − 1/5 =
  30. 30.6/8 − 8/12 =
  31. 31.1/4 + 7/8 =
  32. 32.1/9 + 1/2 =
  33. 33.1/6 + 7/11 =
  34. 34.5/9 + 1/6 =
  35. 35.1/2 − 3/7 =
  36. 36.6/7 − 1/2 =
  37. 37.1/3 + 7/10 =
  38. 38.5/7 + 2/9 =
  39. 39.1/3 − 3/12 =
  40. 40.3/4 + 1/7 =

Answer key

  1. 5/6
  2. 3/2
  3. 15/22
  4. 16/15
  5. 1/3
  6. 11/42
  7. 21/20
  8. 69/56
  9. 31/44
  10. 7/10
  11. 13/12
  12. 1/6
  13. 81/56
  14. 5/8
  15. 24/35
  16. 4/15
  17. 7/44
  18. 21/20
  19. 29/24
  20. 9/22
  21. 5/28
  22. 29/42
  23. 1/10
  24. 41/66
  25. 1/12
  26. 53/60
  27. 13/10
  28. 15/22
  29. 3/10
  30. 1/12
  31. 9/8
  32. 11/18
  33. 53/66
  34. 13/18
  35. 1/14
  36. 5/14
  37. 31/30
  38. 59/63
  39. 1/12
  40. 25/28

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