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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 333 · 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 + 4/7 =
  2. 2.1/2 + 3/10 =
  3. 3.8/12 − 1/2 =
  4. 4.1/2 − 1/8 =
  5. 5.4/5 − 5/7 =
  6. 6.5/12 − 1/3 =
  7. 7.6/10 − 2/5 =
  8. 8.3/4 − 3/8 =
  9. 9.2/3 + 2/3 =
  10. 10.5/9 + 2/11 =
  11. 11.6/8 + 2/5 =
  12. 12.1/3 − 1/5 =
  13. 13.7/8 − 3/10 =
  14. 14.1/5 − 1/7 =
  15. 15.8/9 − 3/9 =
  16. 16.2/3 + 3/5 =
  17. 17.1/2 + 5/12 =
  18. 18.3/8 − 1/3 =
  19. 19.3/4 + 2/7 =
  20. 20.3/8 − 3/12 =
  21. 21.2/9 + 3/5 =
  22. 22.7/8 + 2/8 =
  23. 23.2/4 + 2/3 =
  24. 24.1/2 − 2/9 =
  25. 25.5/7 − 4/9 =
  26. 26.2/5 − 1/3 =
  27. 27.2/5 − 1/3 =
  28. 28.1/7 + 1/2 =
  29. 29.7/9 + 4/11 =
  30. 30.10/12 − 2/10 =
  31. 31.4/6 − 2/6 =
  32. 32.1/10 + 1/2 =
  33. 33.1/2 + 2/3 =
  34. 34.2/5 + 2/3 =
  35. 35.1/4 + 1/4 =
  36. 36.1/4 + 3/5 =
  37. 37.5/6 + 1/3 =
  38. 38.7/9 + 7/8 =
  39. 39.8/10 − 3/5 =
  40. 40.9/12 − 2/5 =

Answer key

  1. 53/56
  2. 4/5
  3. 1/6
  4. 3/8
  5. 3/35
  6. 1/12
  7. 1/5
  8. 3/8
  9. 4/3
  10. 73/99
  11. 23/20
  12. 2/15
  13. 23/40
  14. 2/35
  15. 5/9
  16. 19/15
  17. 11/12
  18. 1/24
  19. 29/28
  20. 1/8
  21. 37/45
  22. 9/8
  23. 7/6
  24. 5/18
  25. 17/63
  26. 1/15
  27. 1/15
  28. 9/14
  29. 113/99
  30. 19/30
  31. 1/3
  32. 3/5
  33. 7/6
  34. 16/15
  35. 1/2
  36. 17/20
  37. 7/6
  38. 119/72
  39. 1/5
  40. 7/20

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