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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 654 · 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. 1.1/9 + 3/9 =
  2. 2.1/2 + 6/12 =
  3. 3.5/7 − 1/2 =
  4. 4.3/4 − 2/9 =
  5. 5.2/6 − 1/12 =
  6. 6.2/4 − 2/11 =
  7. 7.3/4 − 6/10 =
  8. 8.1/2 + 1/3 =
  9. 9.4/12 + 1/2 =
  10. 10.4/6 + 2/3 =
  11. 11.1/5 + 1/2 =
  12. 12.1/4 + 10/12 =
  13. 13.8/11 − 1/2 =
  14. 14.5/8 + 1/2 =
  15. 15.1/2 + 4/5 =
  16. 16.11/12 − 3/4 =
  17. 17.1/7 + 3/7 =
  18. 18.2/4 + 5/10 =
  19. 19.1/5 − 2/12 =
  20. 20.5/11 + 2/3 =
  21. 21.4/5 − 5/11 =
  22. 22.4/6 + 10/11 =
  23. 23.1/6 + 1/2 =
  24. 24.2/4 + 1/11 =
  25. 25.5/7 + 4/5 =
  26. 26.3/4 + 2/11 =
  27. 27.1/2 + 1/5 =
  28. 28.7/9 − 1/11 =
  29. 29.4/5 + 1/10 =
  30. 30.2/4 + 4/9 =
  31. 31.2/3 + 2/6 =
  32. 32.4/11 + 6/7 =
  33. 33.5/7 − 3/11 =
  34. 34.5/9 − 2/10 =
  35. 35.3/5 + 1/4 =
  36. 36.5/6 + 1/4 =
  37. 37.5/8 + 2/3 =
  38. 38.9/10 − 3/6 =
  39. 39.3/9 + 2/3 =
  40. 40.6/7 + 4/11 =

Answer key

  1. 4/9
  2. 1
  3. 3/14
  4. 19/36
  5. 1/4
  6. 7/22
  7. 3/20
  8. 5/6
  9. 5/6
  10. 4/3
  11. 7/10
  12. 13/12
  13. 5/22
  14. 9/8
  15. 13/10
  16. 1/6
  17. 4/7
  18. 1
  19. 1/30
  20. 37/33
  21. 19/55
  22. 52/33
  23. 2/3
  24. 13/22
  25. 53/35
  26. 41/44
  27. 7/10
  28. 68/99
  29. 9/10
  30. 17/18
  31. 1
  32. 94/77
  33. 34/77
  34. 16/45
  35. 17/20
  36. 13/12
  37. 31/24
  38. 2/5
  39. 1
  40. 94/77

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