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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 438 · 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 + 3/5 =
  2. 2.7/11 + 4/7 =
  3. 3.7/10 − 1/8 =
  4. 4.1/2 + 1/5 =
  5. 5.5/10 + 2/4 =
  6. 6.5/12 + 1/7 =
  7. 7.1/10 + 2/5 =
  8. 8.4/7 − 2/5 =
  9. 9.6/9 − 1/8 =
  10. 10.3/11 + 3/12 =
  11. 11.1/11 + 2/3 =
  12. 12.6/12 − 2/5 =
  13. 13.1/6 + 9/12 =
  14. 14.3/6 + 6/9 =
  15. 15.1/3 + 1/2 =
  16. 16.2/3 − 2/5 =
  17. 17.2/10 + 2/8 =
  18. 18.1/2 + 1/7 =
  19. 19.10/12 − 2/6 =
  20. 20.7/10 − 3/8 =
  21. 21.5/12 + 2/10 =
  22. 22.5/9 + 7/9 =
  23. 23.3/7 + 2/3 =
  24. 24.5/9 + 4/5 =
  25. 25.1/6 + 2/3 =
  26. 26.2/3 + 4/12 =
  27. 27.2/5 + 2/5 =
  28. 28.4/5 + 6/12 =
  29. 29.7/9 − 1/2 =
  30. 30.2/5 − 2/12 =
  31. 31.2/3 + 4/7 =
  32. 32.3/12 + 5/7 =
  33. 33.1/11 + 2/3 =
  34. 34.1/9 + 2/6 =
  35. 35.2/11 + 6/7 =
  36. 36.3/4 + 2/3 =
  37. 37.3/4 − 1/2 =
  38. 38.1/2 + 4/10 =
  39. 39.6/11 − 1/4 =
  40. 40.1/2 + 7/9 =

Answer key

  1. 11/10
  2. 93/77
  3. 23/40
  4. 7/10
  5. 1
  6. 47/84
  7. 1/2
  8. 6/35
  9. 13/24
  10. 23/44
  11. 25/33
  12. 1/10
  13. 11/12
  14. 7/6
  15. 5/6
  16. 4/15
  17. 9/20
  18. 9/14
  19. 1/2
  20. 13/40
  21. 37/60
  22. 4/3
  23. 23/21
  24. 61/45
  25. 5/6
  26. 1
  27. 4/5
  28. 13/10
  29. 5/18
  30. 7/30
  31. 26/21
  32. 27/28
  33. 25/33
  34. 4/9
  35. 80/77
  36. 17/12
  37. 1/4
  38. 9/10
  39. 13/44
  40. 23/18

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