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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 796 · 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. 1.7/12 + 3/6 =
  2. 2.5/10 − 1/3 =
  3. 3.1/2 + 3/4 =
  4. 4.4/5 − 3/9 =
  5. 5.4/5 − 1/3 =
  6. 6.2/3 − 2/9 =
  7. 7.10/11 + 9/10 =
  8. 8.1/12 + 3/9 =
  9. 9.5/7 − 1/2 =
  10. 10.1/9 + 3/4 =
  11. 11.5/10 + 3/8 =
  12. 12.1/3 + 1/6 =
  13. 13.1/2 − 2/5 =
  14. 14.1/3 + 7/11 =
  15. 15.2/5 − 1/11 =
  16. 16.7/9 + 5/6 =
  17. 17.1/2 + 1/8 =
  18. 18.3/4 + 9/12 =
  19. 19.7/9 + 6/8 =
  20. 20.1/2 − 1/5 =
  21. 21.10/11 + 11/12 =
  22. 22.1/4 + 2/3 =
  23. 23.3/8 − 1/11 =
  24. 24.6/9 − 1/12 =
  25. 25.6/8 − 1/7 =
  26. 26.4/9 + 5/9 =
  27. 27.3/4 + 3/12 =
  28. 28.4/5 + 7/8 =
  29. 29.2/8 + 1/2 =
  30. 30.3/9 + 2/11 =
  31. 31.2/3 + 5/12 =
  32. 32.2/5 + 7/10 =
  33. 33.3/8 + 2/5 =
  34. 34.2/3 − 3/11 =
  35. 35.5/8 + 3/8 =
  36. 36.3/4 + 1/3 =
  37. 37.5/7 − 5/8 =
  38. 38.1/2 − 1/3 =
  39. 39.2/9 + 4/5 =
  40. 40.2/7 + 1/9 =

Answer key

  1. 13/12
  2. 1/6
  3. 5/4
  4. 7/15
  5. 7/15
  6. 4/9
  7. 199/110
  8. 5/12
  9. 3/14
  10. 31/36
  11. 7/8
  12. 1/2
  13. 1/10
  14. 32/33
  15. 17/55
  16. 29/18
  17. 5/8
  18. 3/2
  19. 55/36
  20. 3/10
  21. 241/132
  22. 11/12
  23. 25/88
  24. 7/12
  25. 17/28
  26. 1
  27. 1
  28. 67/40
  29. 3/4
  30. 17/33
  31. 13/12
  32. 11/10
  33. 31/40
  34. 13/33
  35. 1
  36. 13/12
  37. 5/56
  38. 1/6
  39. 46/45
  40. 25/63

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