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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 906 · 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. 1.7/10 + 7/12 =
  2. 2.1/2 + 8/9 =
  3. 3.3/5 − 1/4 =
  4. 4.3/4 + 1/2 =
  5. 5.5/10 + 1/2 =
  6. 6.5/10 + 3/5 =
  7. 7.2/7 + 2/3 =
  8. 8.4/6 + 3/6 =
  9. 9.6/10 + 8/9 =
  10. 10.2/5 + 1/2 =
  11. 11.8/12 + 2/7 =
  12. 12.2/6 − 2/9 =
  13. 13.7/12 + 1/6 =
  14. 14.1/12 + 2/9 =
  15. 15.1/2 + 4/7 =
  16. 16.7/8 − 1/9 =
  17. 17.3/9 + 1/5 =
  18. 18.2/4 + 4/8 =
  19. 19.4/7 + 2/8 =
  20. 20.2/3 + 1/2 =
  21. 21.2/7 + 6/7 =
  22. 22.1/5 + 4/7 =
  23. 23.3/5 + 3/5 =
  24. 24.5/10 + 9/10 =
  25. 25.1/5 + 1/9 =
  26. 26.1/2 + 1/7 =
  27. 27.10/11 − 4/6 =
  28. 28.1/10 + 5/6 =
  29. 29.1/9 + 2/3 =
  30. 30.2/3 + 1/3 =
  31. 31.2/4 + 1/9 =
  32. 32.3/6 + 8/9 =
  33. 33.1/4 + 1/10 =
  34. 34.4/5 − 6/11 =
  35. 35.6/7 + 9/10 =
  36. 36.1/8 + 1/7 =
  37. 37.7/11 + 5/8 =
  38. 38.1/2 + 1/2 =
  39. 39.3/4 − 2/9 =
  40. 40.6/7 − 2/8 =

Answer key

  1. 77/60
  2. 25/18
  3. 7/20
  4. 5/4
  5. 1
  6. 11/10
  7. 20/21
  8. 7/6
  9. 67/45
  10. 9/10
  11. 20/21
  12. 1/9
  13. 3/4
  14. 11/36
  15. 15/14
  16. 55/72
  17. 8/15
  18. 1
  19. 23/28
  20. 7/6
  21. 8/7
  22. 27/35
  23. 6/5
  24. 7/5
  25. 14/45
  26. 9/14
  27. 8/33
  28. 14/15
  29. 7/9
  30. 1
  31. 11/18
  32. 25/18
  33. 7/20
  34. 14/55
  35. 123/70
  36. 15/56
  37. 111/88
  38. 1
  39. 19/36
  40. 17/28

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