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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 280 · 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 + 1/10 =
  2. 2.2/7 + 1/7 =
  3. 3.2/8 + 2/3 =
  4. 4.1/10 + 1/5 =
  5. 5.10/12 − 3/4 =
  6. 6.1/3 + 3/6 =
  7. 7.1/3 − 1/12 =
  8. 8.2/3 − 4/10 =
  9. 9.1/2 + 2/12 =
  10. 10.1/2 + 2/4 =
  11. 11.3/6 + 1/2 =
  12. 12.10/12 + 2/4 =
  13. 13.8/12 − 2/4 =
  14. 14.1/2 + 3/6 =
  15. 15.1/2 + 8/11 =
  16. 16.5/8 − 3/12 =
  17. 17.2/4 + 3/5 =
  18. 18.7/9 + 6/8 =
  19. 19.1/3 − 1/4 =
  20. 20.4/7 + 4/5 =
  21. 21.2/6 − 1/6 =
  22. 22.2/3 + 1/2 =
  23. 23.1/2 + 1/8 =
  24. 24.7/8 + 1/2 =
  25. 25.3/7 − 2/7 =
  26. 26.3/8 − 1/5 =
  27. 27.1/5 + 1/3 =
  28. 28.2/11 + 1/2 =
  29. 29.3/4 + 5/7 =
  30. 30.5/7 + 6/7 =
  31. 31.1/2 + 2/9 =
  32. 32.4/12 + 2/3 =
  33. 33.1/2 + 3/4 =
  34. 34.7/9 + 3/4 =
  35. 35.1/4 + 1/8 =
  36. 36.1/5 + 2/3 =
  37. 37.5/10 + 4/8 =
  38. 38.2/3 + 3/8 =
  39. 39.2/4 + 1/4 =
  40. 40.7/9 − 1/9 =

Answer key

  1. 3/5
  2. 3/7
  3. 11/12
  4. 3/10
  5. 1/12
  6. 5/6
  7. 1/4
  8. 4/15
  9. 2/3
  10. 1
  11. 1
  12. 4/3
  13. 1/6
  14. 1
  15. 27/22
  16. 3/8
  17. 11/10
  18. 55/36
  19. 1/12
  20. 48/35
  21. 1/6
  22. 7/6
  23. 5/8
  24. 11/8
  25. 1/7
  26. 7/40
  27. 8/15
  28. 15/22
  29. 41/28
  30. 11/7
  31. 13/18
  32. 1
  33. 5/4
  34. 55/36
  35. 3/8
  36. 13/15
  37. 1
  38. 25/24
  39. 3/4
  40. 2/3

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