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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 309 · 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. 1.4/12 + 2/12 =
  2. 2.4/8 − 4/12 =
  3. 3.2/8 + 1/3 =
  4. 4.6/7 − 1/4 =
  5. 5.4/10 + 1/5 =
  6. 6.2/6 + 3/7 =
  7. 7.7/8 − 1/2 =
  8. 8.2/3 − 2/4 =
  9. 9.7/8 + 3/5 =
  10. 10.2/6 + 1/3 =
  11. 11.2/8 + 5/7 =
  12. 12.3/12 + 1/6 =
  13. 13.2/5 − 1/3 =
  14. 14.6/9 + 1/8 =
  15. 15.2/4 + 1/2 =
  16. 16.1/3 + 1/2 =
  17. 17.4/8 − 1/8 =
  18. 18.1/7 + 4/11 =
  19. 19.2/3 + 1/3 =
  20. 20.2/3 + 2/3 =
  21. 21.3/11 + 3/6 =
  22. 22.4/7 − 1/6 =
  23. 23.7/10 + 4/5 =
  24. 24.2/12 + 1/3 =
  25. 25.3/5 + 9/10 =
  26. 26.8/10 − 4/8 =
  27. 27.4/8 + 1/3 =
  28. 28.4/9 + 2/11 =
  29. 29.2/3 + 3/10 =
  30. 30.3/4 − 7/10 =
  31. 31.2/10 + 6/12 =
  32. 32.3/7 + 2/4 =
  33. 33.1/11 + 6/7 =
  34. 34.2/12 − 1/12 =
  35. 35.1/2 + 1/2 =
  36. 36.1/2 − 2/6 =
  37. 37.6/10 − 4/12 =
  38. 38.5/11 + 2/9 =
  39. 39.2/3 + 1/2 =
  40. 40.1/2 − 4/12 =

Answer key

  1. 1/2
  2. 1/6
  3. 7/12
  4. 17/28
  5. 3/5
  6. 16/21
  7. 3/8
  8. 1/6
  9. 59/40
  10. 2/3
  11. 27/28
  12. 5/12
  13. 1/15
  14. 19/24
  15. 1
  16. 5/6
  17. 3/8
  18. 39/77
  19. 1
  20. 4/3
  21. 17/22
  22. 17/42
  23. 3/2
  24. 1/2
  25. 3/2
  26. 3/10
  27. 5/6
  28. 62/99
  29. 29/30
  30. 1/20
  31. 7/10
  32. 13/14
  33. 73/77
  34. 1/12
  35. 1
  36. 1/6
  37. 4/15
  38. 67/99
  39. 7/6
  40. 1/6

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