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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 99 · 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 − 2/3 =
  2. 2.6/7 + 1/2 =
  3. 3.7/11 + 1/2 =
  4. 4.7/10 + 1/3 =
  5. 5.5/7 − 6/11 =
  6. 6.8/11 − 2/8 =
  7. 7.1/3 + 1/3 =
  8. 8.7/8 − 1/2 =
  9. 9.1/9 + 3/4 =
  10. 10.10/12 + 8/12 =
  11. 11.4/10 + 1/2 =
  12. 12.6/10 + 6/7 =
  13. 13.1/2 + 7/10 =
  14. 14.8/10 + 2/3 =
  15. 15.3/12 + 7/12 =
  16. 16.2/4 − 1/7 =
  17. 17.5/8 − 6/11 =
  18. 18.5/11 − 1/3 =
  19. 19.3/4 − 1/2 =
  20. 20.11/12 + 3/5 =
  21. 21.3/6 − 4/9 =
  22. 22.2/3 − 3/5 =
  23. 23.1/2 + 1/10 =
  24. 24.1/2 − 3/9 =
  25. 25.1/8 + 1/12 =
  26. 26.2/5 + 4/10 =
  27. 27.1/2 + 1/2 =
  28. 28.1/2 + 8/10 =
  29. 29.1/2 + 7/9 =
  30. 30.3/11 + 2/12 =
  31. 31.1/2 − 1/7 =
  32. 32.2/3 + 1/9 =
  33. 33.1/2 − 1/3 =
  34. 34.2/6 − 1/9 =
  35. 35.9/12 + 2/10 =
  36. 36.2/5 + 2/3 =
  37. 37.7/9 − 4/7 =
  38. 38.1/8 + 2/7 =
  39. 39.10/12 − 1/9 =
  40. 40.6/9 + 2/4 =

Answer key

  1. 1/12
  2. 19/14
  3. 25/22
  4. 31/30
  5. 13/77
  6. 21/44
  7. 2/3
  8. 3/8
  9. 31/36
  10. 3/2
  11. 9/10
  12. 51/35
  13. 6/5
  14. 22/15
  15. 5/6
  16. 5/14
  17. 7/88
  18. 4/33
  19. 1/4
  20. 91/60
  21. 1/18
  22. 1/15
  23. 3/5
  24. 1/6
  25. 5/24
  26. 4/5
  27. 1
  28. 13/10
  29. 23/18
  30. 29/66
  31. 5/14
  32. 7/9
  33. 1/6
  34. 2/9
  35. 19/20
  36. 16/15
  37. 13/63
  38. 23/56
  39. 13/18
  40. 7/6

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