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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 566 · 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. 1.1/2 + 1/8 =
  2. 2.9/10 + 1/8 =
  3. 3.8/9 + 1/3 =
  4. 4.2/3 − 3/11 =
  5. 5.1/3 + 3/4 =
  6. 6.2/4 + 1/2 =
  7. 7.2/6 + 1/3 =
  8. 8.7/11 + 10/11 =
  9. 9.9/12 + 3/8 =
  10. 10.2/12 + 2/12 =
  11. 11.8/11 + 2/3 =
  12. 12.8/9 + 1/2 =
  13. 13.2/4 + 1/2 =
  14. 14.3/7 + 4/7 =
  15. 15.1/5 + 1/10 =
  16. 16.5/12 + 3/5 =
  17. 17.6/9 + 8/11 =
  18. 18.5/10 + 1/2 =
  19. 19.10/12 + 4/5 =
  20. 20.3/5 + 1/2 =
  21. 21.7/9 + 6/9 =
  22. 22.7/9 − 1/3 =
  23. 23.1/3 − 1/8 =
  24. 24.1/3 + 1/3 =
  25. 25.1/11 + 1/2 =
  26. 26.3/7 − 1/4 =
  27. 27.3/6 + 3/5 =
  28. 28.2/7 + 2/6 =
  29. 29.8/10 − 6/10 =
  30. 30.1/2 − 3/12 =
  31. 31.9/10 − 3/4 =
  32. 32.8/10 − 1/4 =
  33. 33.1/2 − 1/4 =
  34. 34.1/11 + 1/2 =
  35. 35.2/7 − 1/5 =
  36. 36.3/6 + 7/10 =
  37. 37.4/11 − 2/8 =
  38. 38.6/7 + 1/8 =
  39. 39.1/5 + 1/11 =
  40. 40.8/12 + 3/4 =

Answer key

  1. 5/8
  2. 41/40
  3. 11/9
  4. 13/33
  5. 13/12
  6. 1
  7. 2/3
  8. 17/11
  9. 9/8
  10. 1/3
  11. 46/33
  12. 25/18
  13. 1
  14. 1
  15. 3/10
  16. 61/60
  17. 46/33
  18. 1
  19. 49/30
  20. 11/10
  21. 13/9
  22. 4/9
  23. 5/24
  24. 2/3
  25. 13/22
  26. 5/28
  27. 11/10
  28. 13/21
  29. 1/5
  30. 1/4
  31. 3/20
  32. 11/20
  33. 1/4
  34. 13/22
  35. 3/35
  36. 6/5
  37. 5/44
  38. 55/56
  39. 16/55
  40. 17/12

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