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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 759 · 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. 1.1/3 + 2/4 =
  2. 2.1/2 + 3/12 =
  3. 3.2/4 + 6/8 =
  4. 4.6/8 − 2/5 =
  5. 5.8/10 − 6/12 =
  6. 6.1/6 + 4/7 =
  7. 7.1/2 + 2/5 =
  8. 8.1/2 − 2/6 =
  9. 9.3/9 + 1/2 =
  10. 10.2/7 − 1/5 =
  11. 11.4/11 − 1/11 =
  12. 12.1/6 + 5/12 =
  13. 13.4/12 + 2/3 =
  14. 14.5/7 − 3/9 =
  15. 15.4/5 + 1/5 =
  16. 16.4/10 + 3/12 =
  17. 17.1/5 + 6/7 =
  18. 18.4/8 − 1/3 =
  19. 19.2/12 + 1/2 =
  20. 20.7/8 − 2/8 =
  21. 21.2/10 + 7/12 =
  22. 22.3/4 + 1/4 =
  23. 23.9/12 + 4/9 =
  24. 24.4/12 + 9/10 =
  25. 25.4/8 + 5/6 =
  26. 26.1/2 − 3/8 =
  27. 27.1/3 + 1/6 =
  28. 28.1/4 + 3/9 =
  29. 29.3/7 + 1/7 =
  30. 30.1/3 + 8/10 =
  31. 31.5/9 + 1/4 =
  32. 32.1/2 − 5/11 =
  33. 33.1/10 + 4/10 =
  34. 34.1/2 − 2/8 =
  35. 35.3/12 + 9/10 =
  36. 36.9/10 + 5/8 =
  37. 37.1/3 + 3/7 =
  38. 38.2/10 + 3/5 =
  39. 39.1/4 + 8/10 =
  40. 40.2/3 − 1/5 =

Answer key

  1. 5/6
  2. 3/4
  3. 5/4
  4. 7/20
  5. 3/10
  6. 31/42
  7. 9/10
  8. 1/6
  9. 5/6
  10. 3/35
  11. 3/11
  12. 7/12
  13. 1
  14. 8/21
  15. 1
  16. 13/20
  17. 37/35
  18. 1/6
  19. 2/3
  20. 5/8
  21. 47/60
  22. 1
  23. 43/36
  24. 37/30
  25. 4/3
  26. 1/8
  27. 1/2
  28. 7/12
  29. 4/7
  30. 17/15
  31. 29/36
  32. 1/22
  33. 1/2
  34. 1/4
  35. 23/20
  36. 61/40
  37. 16/21
  38. 4/5
  39. 21/20
  40. 7/15

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