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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 43 · 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. 1.7/8 − 2/3 =
  2. 2.5/9 + 1/7 =
  3. 3.4/5 − 2/4 =
  4. 4.1/3 + 1/9 =
  5. 5.8/10 − 3/4 =
  6. 6.7/12 + 4/6 =
  7. 7.4/7 + 11/12 =
  8. 8.2/7 + 1/6 =
  9. 9.5/8 − 1/2 =
  10. 10.6/7 − 5/9 =
  11. 11.2/9 − 1/10 =
  12. 12.6/7 − 1/4 =
  13. 13.2/10 − 1/8 =
  14. 14.7/11 + 3/5 =
  15. 15.1/3 + 2/3 =
  16. 16.1/2 − 3/7 =
  17. 17.1/2 − 2/5 =
  18. 18.1/6 + 1/6 =
  19. 19.1/3 + 4/6 =
  20. 20.10/11 − 3/9 =
  21. 21.2/8 + 3/5 =
  22. 22.5/12 − 1/10 =
  23. 23.1/3 + 2/10 =
  24. 24.2/9 + 4/9 =
  25. 25.2/8 + 8/10 =
  26. 26.1/3 − 1/4 =
  27. 27.1/12 + 4/11 =
  28. 28.3/9 + 2/4 =
  29. 29.2/6 + 3/9 =
  30. 30.2/3 + 4/5 =
  31. 31.1/2 + 3/4 =
  32. 32.1/11 + 3/4 =
  33. 33.7/8 − 4/5 =
  34. 34.1/4 − 2/12 =
  35. 35.10/11 − 8/10 =
  36. 36.10/12 + 2/6 =
  37. 37.3/5 + 2/4 =
  38. 38.1/2 + 6/7 =
  39. 39.1/2 + 1/6 =
  40. 40.1/6 + 1/4 =

Answer key

  1. 5/24
  2. 44/63
  3. 3/10
  4. 4/9
  5. 1/20
  6. 5/4
  7. 125/84
  8. 19/42
  9. 1/8
  10. 19/63
  11. 11/90
  12. 17/28
  13. 3/40
  14. 68/55
  15. 1
  16. 1/14
  17. 1/10
  18. 1/3
  19. 1
  20. 19/33
  21. 17/20
  22. 19/60
  23. 8/15
  24. 2/3
  25. 21/20
  26. 1/12
  27. 59/132
  28. 5/6
  29. 2/3
  30. 22/15
  31. 5/4
  32. 37/44
  33. 3/40
  34. 1/12
  35. 6/55
  36. 7/6
  37. 11/10
  38. 19/14
  39. 2/3
  40. 5/12

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