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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 377 · 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. 1.6/12 + 5/10 =
  2. 2.4/5 + 5/10 =
  3. 3.1/3 + 8/10 =
  4. 4.4/6 + 3/7 =
  5. 5.7/10 − 2/4 =
  6. 6.1/5 + 1/3 =
  7. 7.1/2 + 1/3 =
  8. 8.1/4 − 2/10 =
  9. 9.3/4 − 1/3 =
  10. 10.6/11 + 3/8 =
  11. 11.2/6 + 5/7 =
  12. 12.5/6 + 2/12 =
  13. 13.3/6 + 2/4 =
  14. 14.6/10 − 2/4 =
  15. 15.3/4 + 3/10 =
  16. 16.5/6 + 1/4 =
  17. 17.1/11 + 1/5 =
  18. 18.3/6 − 2/5 =
  19. 19.1/4 + 1/2 =
  20. 20.1/2 + 1/2 =
  21. 21.4/12 + 1/2 =
  22. 22.1/2 + 1/2 =
  23. 23.3/6 − 1/10 =
  24. 24.1/5 − 2/12 =
  25. 25.1/2 + 3/6 =
  26. 26.3/5 − 4/12 =
  27. 27.1/2 + 1/4 =
  28. 28.4/7 + 1/2 =
  29. 29.3/4 + 1/4 =
  30. 30.3/10 − 1/4 =
  31. 31.6/9 + 3/4 =
  32. 32.6/11 − 4/9 =
  33. 33.2/4 − 1/7 =
  34. 34.2/6 − 2/10 =
  35. 35.1/12 + 7/10 =
  36. 36.2/10 − 2/11 =
  37. 37.1/2 + 8/10 =
  38. 38.7/11 + 3/4 =
  39. 39.1/2 − 2/7 =
  40. 40.2/10 + 1/8 =

Answer key

  1. 1
  2. 13/10
  3. 17/15
  4. 23/21
  5. 1/5
  6. 8/15
  7. 5/6
  8. 1/20
  9. 5/12
  10. 81/88
  11. 22/21
  12. 1
  13. 1
  14. 1/10
  15. 21/20
  16. 13/12
  17. 16/55
  18. 1/10
  19. 3/4
  20. 1
  21. 5/6
  22. 1
  23. 2/5
  24. 1/30
  25. 1
  26. 4/15
  27. 3/4
  28. 15/14
  29. 1
  30. 1/20
  31. 17/12
  32. 10/99
  33. 5/14
  34. 2/15
  35. 47/60
  36. 1/55
  37. 13/10
  38. 61/44
  39. 3/14
  40. 13/40

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