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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 845 · 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. 1.7/9 + 4/10 =
  2. 2.5/7 − 1/10 =
  3. 3.1/5 + 2/4 =
  4. 4.6/12 + 7/9 =
  5. 5.6/9 + 1/3 =
  6. 6.4/6 − 6/10 =
  7. 7.2/3 + 1/2 =
  8. 8.6/7 − 1/2 =
  9. 9.1/6 + 1/3 =
  10. 10.4/12 + 10/12 =
  11. 11.5/7 + 2/3 =
  12. 12.11/12 + 3/10 =
  13. 13.5/6 + 1/3 =
  14. 14.1/7 + 4/11 =
  15. 15.2/4 + 3/5 =
  16. 16.7/9 − 1/4 =
  17. 17.2/3 − 1/12 =
  18. 18.2/3 − 1/3 =
  19. 19.2/7 + 2/12 =
  20. 20.7/8 − 1/2 =
  21. 21.7/11 + 1/2 =
  22. 22.2/3 − 4/9 =
  23. 23.1/2 + 10/12 =
  24. 24.2/6 + 2/6 =
  25. 25.1/12 + 2/4 =
  26. 26.8/12 + 1/5 =
  27. 27.3/5 + 3/6 =
  28. 28.9/10 − 2/4 =
  29. 29.4/9 − 2/6 =
  30. 30.4/5 − 1/2 =
  31. 31.3/4 + 2/3 =
  32. 32.3/9 − 3/12 =
  33. 33.4/5 + 1/3 =
  34. 34.5/6 − 6/12 =
  35. 35.2/7 + 3/12 =
  36. 36.1/3 + 2/12 =
  37. 37.7/8 − 3/10 =
  38. 38.4/10 + 1/3 =
  39. 39.6/12 − 3/9 =
  40. 40.6/8 − 2/4 =

Answer key

  1. 53/45
  2. 43/70
  3. 7/10
  4. 23/18
  5. 1
  6. 1/15
  7. 7/6
  8. 5/14
  9. 1/2
  10. 7/6
  11. 29/21
  12. 73/60
  13. 7/6
  14. 39/77
  15. 11/10
  16. 19/36
  17. 7/12
  18. 1/3
  19. 19/42
  20. 3/8
  21. 25/22
  22. 2/9
  23. 4/3
  24. 2/3
  25. 7/12
  26. 13/15
  27. 11/10
  28. 2/5
  29. 1/9
  30. 3/10
  31. 17/12
  32. 1/12
  33. 17/15
  34. 1/3
  35. 15/28
  36. 1/2
  37. 23/40
  38. 11/15
  39. 1/6
  40. 1/4

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