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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 835 · 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. 1.5/6 − 2/10 =
  2. 2.1/3 + 3/9 =
  3. 3.8/10 + 1/4 =
  4. 4.1/2 + 2/12 =
  5. 5.2/10 + 6/7 =
  6. 6.4/10 + 1/2 =
  7. 7.5/8 − 2/7 =
  8. 8.8/9 − 9/11 =
  9. 9.2/7 + 1/2 =
  10. 10.6/9 + 2/3 =
  11. 11.1/6 + 5/6 =
  12. 12.3/4 + 2/6 =
  13. 13.3/4 + 2/9 =
  14. 14.1/4 − 1/12 =
  15. 15.4/10 − 1/3 =
  16. 16.1/2 − 1/7 =
  17. 17.5/6 − 1/6 =
  18. 18.5/7 + 4/6 =
  19. 19.2/3 − 2/10 =
  20. 20.3/5 + 3/10 =
  21. 21.4/6 + 8/12 =
  22. 22.2/3 − 2/11 =
  23. 23.2/3 + 5/7 =
  24. 24.2/6 + 2/7 =
  25. 25.3/9 + 3/5 =
  26. 26.3/7 − 1/4 =
  27. 27.6/7 − 1/2 =
  28. 28.2/6 + 6/9 =
  29. 29.8/10 + 6/9 =
  30. 30.5/9 + 1/12 =
  31. 31.4/10 + 4/5 =
  32. 32.4/12 − 2/12 =
  33. 33.4/7 + 1/4 =
  34. 34.2/3 − 1/5 =
  35. 35.1/9 + 3/5 =
  36. 36.1/3 − 1/6 =
  37. 37.6/10 − 5/9 =
  38. 38.2/6 + 1/6 =
  39. 39.6/7 − 1/7 =
  40. 40.7/8 − 1/6 =

Answer key

  1. 19/30
  2. 2/3
  3. 21/20
  4. 2/3
  5. 37/35
  6. 9/10
  7. 19/56
  8. 7/99
  9. 11/14
  10. 4/3
  11. 1
  12. 13/12
  13. 35/36
  14. 1/6
  15. 1/15
  16. 5/14
  17. 2/3
  18. 29/21
  19. 7/15
  20. 9/10
  21. 4/3
  22. 16/33
  23. 29/21
  24. 13/21
  25. 14/15
  26. 5/28
  27. 5/14
  28. 1
  29. 22/15
  30. 23/36
  31. 6/5
  32. 1/6
  33. 23/28
  34. 7/15
  35. 32/45
  36. 1/6
  37. 2/45
  38. 1/2
  39. 5/7
  40. 17/24

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