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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 731 · 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 − 3/8 =
  2. 2.4/12 + 5/9 =
  3. 3.2/4 + 1/2 =
  4. 4.7/12 − 1/2 =
  5. 5.3/12 − 1/6 =
  6. 6.2/8 + 1/7 =
  7. 7.5/6 − 1/4 =
  8. 8.9/12 − 5/10 =
  9. 9.9/12 − 1/3 =
  10. 10.2/4 + 3/4 =
  11. 11.4/9 − 2/6 =
  12. 12.6/10 + 9/11 =
  13. 13.2/4 + 4/11 =
  14. 14.1/4 + 6/7 =
  15. 15.2/4 + 4/7 =
  16. 16.5/11 + 5/9 =
  17. 17.3/10 + 1/9 =
  18. 18.2/4 + 9/12 =
  19. 19.8/9 + 1/4 =
  20. 20.6/9 − 1/2 =
  21. 21.1/2 + 3/11 =
  22. 22.8/12 + 4/6 =
  23. 23.1/6 + 9/11 =
  24. 24.4/6 + 1/9 =
  25. 25.1/2 + 5/7 =
  26. 26.2/5 + 11/12 =
  27. 27.5/7 + 4/8 =
  28. 28.1/5 + 4/9 =
  29. 29.7/8 + 5/6 =
  30. 30.2/4 − 1/4 =
  31. 31.3/6 − 4/10 =
  32. 32.11/12 + 2/4 =
  33. 33.1/8 + 1/6 =
  34. 34.2/3 + 2/6 =
  35. 35.8/10 + 2/3 =
  36. 36.2/3 + 4/9 =
  37. 37.1/2 + 2/4 =
  38. 38.8/9 + 2/5 =
  39. 39.2/3 − 1/9 =
  40. 40.4/6 − 1/11 =

Answer key

  1. 1/8
  2. 8/9
  3. 1
  4. 1/12
  5. 1/12
  6. 11/28
  7. 7/12
  8. 1/4
  9. 5/12
  10. 5/4
  11. 1/9
  12. 78/55
  13. 19/22
  14. 31/28
  15. 15/14
  16. 100/99
  17. 37/90
  18. 5/4
  19. 41/36
  20. 1/6
  21. 17/22
  22. 4/3
  23. 65/66
  24. 7/9
  25. 17/14
  26. 79/60
  27. 17/14
  28. 29/45
  29. 41/24
  30. 1/4
  31. 1/10
  32. 17/12
  33. 7/24
  34. 1
  35. 22/15
  36. 10/9
  37. 1
  38. 58/45
  39. 5/9
  40. 19/33

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