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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 561 · 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. 1.2/4 + 8/10 =
  2. 2.2/4 − 2/9 =
  3. 3.3/4 + 2/3 =
  4. 4.8/9 − 5/6 =
  5. 5.2/7 − 3/11 =
  6. 6.6/8 − 2/3 =
  7. 7.3/4 − 2/4 =
  8. 8.3/4 − 2/7 =
  9. 9.1/3 + 3/5 =
  10. 10.2/3 − 3/7 =
  11. 11.2/3 + 1/10 =
  12. 12.1/10 + 2/6 =
  13. 13.4/12 + 2/4 =
  14. 14.6/9 − 2/6 =
  15. 15.3/8 + 5/10 =
  16. 16.6/8 − 8/11 =
  17. 17.5/7 − 1/7 =
  18. 18.1/7 + 2/3 =
  19. 19.7/11 + 1/5 =
  20. 20.3/4 + 3/7 =
  21. 21.1/11 + 1/4 =
  22. 22.3/4 + 1/2 =
  23. 23.9/12 + 2/4 =
  24. 24.3/6 − 2/7 =
  25. 25.5/7 + 3/9 =
  26. 26.11/12 − 4/9 =
  27. 27.11/12 − 4/6 =
  28. 28.3/5 + 3/6 =
  29. 29.4/5 + 6/7 =
  30. 30.1/2 + 4/8 =
  31. 31.3/12 − 1/11 =
  32. 32.7/10 + 5/12 =
  33. 33.1/2 + 5/8 =
  34. 34.3/7 − 1/5 =
  35. 35.8/9 − 1/2 =
  36. 36.1/8 + 2/3 =
  37. 37.1/3 + 2/4 =
  38. 38.1/3 + 4/12 =
  39. 39.2/3 − 3/5 =
  40. 40.6/8 − 1/5 =

Answer key

  1. 13/10
  2. 5/18
  3. 17/12
  4. 1/18
  5. 1/77
  6. 1/12
  7. 1/4
  8. 13/28
  9. 14/15
  10. 5/21
  11. 23/30
  12. 13/30
  13. 5/6
  14. 1/3
  15. 7/8
  16. 1/44
  17. 4/7
  18. 17/21
  19. 46/55
  20. 33/28
  21. 15/44
  22. 5/4
  23. 5/4
  24. 3/14
  25. 22/21
  26. 17/36
  27. 1/4
  28. 11/10
  29. 58/35
  30. 1
  31. 7/44
  32. 67/60
  33. 9/8
  34. 8/35
  35. 7/18
  36. 19/24
  37. 5/6
  38. 2/3
  39. 1/15
  40. 11/20

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