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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 489 · 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. 1.7/11 + 3/10 =
  2. 2.2/4 + 1/8 =
  3. 3.1/2 − 2/11 =
  4. 4.3/4 − 5/12 =
  5. 5.3/4 − 3/8 =
  6. 6.1/2 + 2/5 =
  7. 7.2/3 + 2/7 =
  8. 8.6/9 + 4/11 =
  9. 9.2/11 + 2/4 =
  10. 10.2/3 + 1/3 =
  11. 11.1/10 + 2/4 =
  12. 12.4/5 − 1/3 =
  13. 13.2/3 + 1/2 =
  14. 14.3/12 + 1/2 =
  15. 15.1/8 + 1/5 =
  16. 16.7/10 + 2/4 =
  17. 17.2/9 + 3/7 =
  18. 18.1/2 + 2/3 =
  19. 19.4/5 − 3/6 =
  20. 20.4/7 − 1/2 =
  21. 21.7/11 − 2/9 =
  22. 22.8/10 − 1/3 =
  23. 23.4/11 + 1/6 =
  24. 24.10/11 + 2/3 =
  25. 25.6/7 − 8/10 =
  26. 26.8/10 − 3/11 =
  27. 27.2/3 − 3/8 =
  28. 28.3/8 + 4/8 =
  29. 29.2/10 + 4/9 =
  30. 30.1/6 + 1/4 =
  31. 31.1/2 + 4/10 =
  32. 32.3/6 − 3/9 =
  33. 33.2/5 + 2/9 =
  34. 34.4/5 + 3/4 =
  35. 35.3/6 + 2/8 =
  36. 36.4/5 − 2/8 =
  37. 37.1/5 + 6/10 =
  38. 38.5/8 + 6/8 =
  39. 39.8/10 + 1/2 =
  40. 40.6/8 − 6/11 =

Answer key

  1. 103/110
  2. 5/8
  3. 7/22
  4. 1/3
  5. 3/8
  6. 9/10
  7. 20/21
  8. 34/33
  9. 15/22
  10. 1
  11. 3/5
  12. 7/15
  13. 7/6
  14. 3/4
  15. 13/40
  16. 6/5
  17. 41/63
  18. 7/6
  19. 3/10
  20. 1/14
  21. 41/99
  22. 7/15
  23. 35/66
  24. 52/33
  25. 2/35
  26. 29/55
  27. 7/24
  28. 7/8
  29. 29/45
  30. 5/12
  31. 9/10
  32. 1/6
  33. 28/45
  34. 31/20
  35. 3/4
  36. 11/20
  37. 4/5
  38. 11/8
  39. 13/10
  40. 9/44

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