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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 190 · 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. 1.3/8 + 3/8 =
  2. 2.2/4 + 1/2 =
  3. 3.4/5 + 1/4 =
  4. 4.3/8 + 2/3 =
  5. 5.6/8 − 2/10 =
  6. 6.1/2 + 4/12 =
  7. 7.4/11 + 1/3 =
  8. 8.3/10 + 5/11 =
  9. 9.5/7 − 1/7 =
  10. 10.1/2 + 2/7 =
  11. 11.3/8 + 3/11 =
  12. 12.1/5 + 1/3 =
  13. 13.3/10 − 1/5 =
  14. 14.1/2 + 3/4 =
  15. 15.1/12 + 8/9 =
  16. 16.2/8 + 4/8 =
  17. 17.4/8 + 1/2 =
  18. 18.1/10 + 1/11 =
  19. 19.1/6 + 2/4 =
  20. 20.8/10 − 2/12 =
  21. 21.7/8 − 1/2 =
  22. 22.4/11 − 3/12 =
  23. 23.1/2 + 2/5 =
  24. 24.2/7 − 1/8 =
  25. 25.3/7 − 4/12 =
  26. 26.3/8 + 2/3 =
  27. 27.2/9 + 2/10 =
  28. 28.1/2 − 1/11 =
  29. 29.8/9 + 1/2 =
  30. 30.10/11 + 2/3 =
  31. 31.1/2 + 2/12 =
  32. 32.6/8 − 2/3 =
  33. 33.2/6 + 1/3 =
  34. 34.4/6 − 2/11 =
  35. 35.6/8 − 2/6 =
  36. 36.1/6 + 2/3 =
  37. 37.9/11 − 1/2 =
  38. 38.2/10 + 6/7 =
  39. 39.3/5 + 1/5 =
  40. 40.1/11 + 7/8 =

Answer key

  1. 3/4
  2. 1
  3. 21/20
  4. 25/24
  5. 11/20
  6. 5/6
  7. 23/33
  8. 83/110
  9. 4/7
  10. 11/14
  11. 57/88
  12. 8/15
  13. 1/10
  14. 5/4
  15. 35/36
  16. 3/4
  17. 1
  18. 21/110
  19. 2/3
  20. 19/30
  21. 3/8
  22. 5/44
  23. 9/10
  24. 9/56
  25. 2/21
  26. 25/24
  27. 19/45
  28. 9/22
  29. 25/18
  30. 52/33
  31. 2/3
  32. 1/12
  33. 2/3
  34. 16/33
  35. 5/12
  36. 5/6
  37. 7/22
  38. 37/35
  39. 4/5
  40. 85/88

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