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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 555 · 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. 1.1/6 + 1/6 =
  2. 2.1/7 + 1/3 =
  3. 3.7/8 − 1/3 =
  4. 4.1/4 + 2/3 =
  5. 5.1/4 + 2/12 =
  6. 6.1/3 + 5/8 =
  7. 7.4/5 + 5/7 =
  8. 8.2/6 + 10/12 =
  9. 9.1/3 + 1/8 =
  10. 10.6/9 + 2/7 =
  11. 11.6/10 + 3/9 =
  12. 12.3/5 − 1/3 =
  13. 13.5/11 + 5/6 =
  14. 14.6/10 + 2/4 =
  15. 15.10/12 + 2/5 =
  16. 16.1/2 + 2/7 =
  17. 17.1/3 + 9/12 =
  18. 18.1/5 + 5/6 =
  19. 19.1/2 + 1/8 =
  20. 20.1/11 + 10/11 =
  21. 21.4/5 + 6/11 =
  22. 22.5/7 + 4/5 =
  23. 23.2/11 + 1/2 =
  24. 24.2/4 + 6/7 =
  25. 25.1/2 + 1/9 =
  26. 26.2/3 − 3/10 =
  27. 27.2/3 + 3/7 =
  28. 28.3/7 + 1/2 =
  29. 29.3/4 + 1/10 =
  30. 30.6/7 − 1/8 =
  31. 31.4/8 + 5/10 =
  32. 32.8/10 + 10/11 =
  33. 33.1/2 − 1/12 =
  34. 34.5/8 + 8/11 =
  35. 35.2/10 + 3/12 =
  36. 36.1/3 + 8/10 =
  37. 37.5/9 − 1/2 =
  38. 38.6/8 + 1/2 =
  39. 39.3/12 + 2/3 =
  40. 40.1/12 + 2/3 =

Answer key

  1. 1/3
  2. 10/21
  3. 13/24
  4. 11/12
  5. 5/12
  6. 23/24
  7. 53/35
  8. 7/6
  9. 11/24
  10. 20/21
  11. 14/15
  12. 4/15
  13. 85/66
  14. 11/10
  15. 37/30
  16. 11/14
  17. 13/12
  18. 31/30
  19. 5/8
  20. 1
  21. 74/55
  22. 53/35
  23. 15/22
  24. 19/14
  25. 11/18
  26. 11/30
  27. 23/21
  28. 13/14
  29. 17/20
  30. 41/56
  31. 1
  32. 94/55
  33. 5/12
  34. 119/88
  35. 9/20
  36. 17/15
  37. 1/18
  38. 5/4
  39. 11/12
  40. 3/4

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