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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 664 · 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. 1.1/9 + 7/8 =
  2. 2.1/12 + 6/9 =
  3. 3.3/4 − 5/8 =
  4. 4.5/7 + 2/5 =
  5. 5.8/12 − 1/3 =
  6. 6.2/3 + 1/4 =
  7. 7.5/8 − 2/10 =
  8. 8.7/8 − 4/5 =
  9. 9.2/5 + 1/10 =
  10. 10.2/3 + 2/8 =
  11. 11.7/8 − 5/6 =
  12. 12.8/9 − 1/2 =
  13. 13.3/4 + 1/11 =
  14. 14.4/9 − 2/6 =
  15. 15.8/9 − 6/8 =
  16. 16.1/3 + 2/5 =
  17. 17.6/11 + 1/4 =
  18. 18.8/12 + 1/2 =
  19. 19.8/10 − 2/3 =
  20. 20.4/6 − 1/2 =
  21. 21.6/11 + 6/12 =
  22. 22.6/8 + 1/11 =
  23. 23.1/2 − 2/11 =
  24. 24.7/11 + 4/11 =
  25. 25.9/12 + 1/4 =
  26. 26.1/2 + 8/9 =
  27. 27.2/3 + 1/2 =
  28. 28.7/12 − 2/4 =
  29. 29.4/8 + 1/5 =
  30. 30.4/6 + 3/4 =
  31. 31.8/9 + 10/11 =
  32. 32.1/6 + 2/5 =
  33. 33.2/3 − 1/4 =
  34. 34.9/12 − 2/4 =
  35. 35.1/2 − 2/6 =
  36. 36.1/3 + 1/6 =
  37. 37.2/4 − 1/5 =
  38. 38.4/9 + 3/6 =
  39. 39.7/8 − 4/5 =
  40. 40.8/9 − 4/8 =

Answer key

  1. 71/72
  2. 3/4
  3. 1/8
  4. 39/35
  5. 1/3
  6. 11/12
  7. 17/40
  8. 3/40
  9. 1/2
  10. 11/12
  11. 1/24
  12. 7/18
  13. 37/44
  14. 1/9
  15. 5/36
  16. 11/15
  17. 35/44
  18. 7/6
  19. 2/15
  20. 1/6
  21. 23/22
  22. 37/44
  23. 7/22
  24. 1
  25. 1
  26. 25/18
  27. 7/6
  28. 1/12
  29. 7/10
  30. 17/12
  31. 178/99
  32. 17/30
  33. 5/12
  34. 1/4
  35. 1/6
  36. 1/2
  37. 3/10
  38. 17/18
  39. 3/40
  40. 7/18

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