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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 386 · 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. 1.2/10 + 1/11 =
  2. 2.3/6 + 1/2 =
  3. 3.1/2 − 2/9 =
  4. 4.6/9 − 3/7 =
  5. 5.4/5 − 5/9 =
  6. 6.1/2 + 1/2 =
  7. 7.7/12 + 5/7 =
  8. 8.1/2 + 1/2 =
  9. 9.1/3 − 1/10 =
  10. 10.3/8 + 3/9 =
  11. 11.8/9 + 2/6 =
  12. 12.2/5 + 5/6 =
  13. 13.2/9 + 5/6 =
  14. 14.3/7 + 2/4 =
  15. 15.1/4 + 4/11 =
  16. 16.1/2 + 2/6 =
  17. 17.1/2 − 2/7 =
  18. 18.8/10 − 1/2 =
  19. 19.6/11 + 5/10 =
  20. 20.6/8 + 1/7 =
  21. 21.1/2 − 2/5 =
  22. 22.6/10 + 1/2 =
  23. 23.7/10 + 3/10 =
  24. 24.2/5 + 2/8 =
  25. 25.2/7 + 4/9 =
  26. 26.2/3 − 1/3 =
  27. 27.3/4 − 1/6 =
  28. 28.3/9 + 11/12 =
  29. 29.1/2 + 4/12 =
  30. 30.6/7 − 5/8 =
  31. 31.1/7 + 2/12 =
  32. 32.7/12 + 2/3 =
  33. 33.2/3 + 2/8 =
  34. 34.3/5 + 1/3 =
  35. 35.2/6 + 8/9 =
  36. 36.6/7 − 2/3 =
  37. 37.3/5 − 4/7 =
  38. 38.9/11 + 2/6 =
  39. 39.3/8 + 1/2 =
  40. 40.1/2 + 7/8 =

Answer key

  1. 16/55
  2. 1
  3. 5/18
  4. 5/21
  5. 11/45
  6. 1
  7. 109/84
  8. 1
  9. 7/30
  10. 17/24
  11. 11/9
  12. 37/30
  13. 19/18
  14. 13/14
  15. 27/44
  16. 5/6
  17. 3/14
  18. 3/10
  19. 23/22
  20. 25/28
  21. 1/10
  22. 11/10
  23. 1
  24. 13/20
  25. 46/63
  26. 1/3
  27. 7/12
  28. 5/4
  29. 5/6
  30. 13/56
  31. 13/42
  32. 5/4
  33. 11/12
  34. 14/15
  35. 11/9
  36. 4/21
  37. 1/35
  38. 38/33
  39. 7/8
  40. 11/8

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