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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 244 · 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. 1.1/2 − 1/12 =
  2. 2.4/9 + 3/7 =
  3. 3.6/10 + 4/5 =
  4. 4.1/12 + 8/11 =
  5. 5.5/9 + 5/6 =
  6. 6.6/8 − 1/5 =
  7. 7.7/8 + 1/3 =
  8. 8.3/6 + 2/3 =
  9. 9.2/4 − 1/3 =
  10. 10.1/3 + 5/9 =
  11. 11.7/9 + 2/5 =
  12. 12.1/2 + 1/2 =
  13. 13.5/7 − 1/5 =
  14. 14.2/11 + 2/11 =
  15. 15.8/9 + 1/6 =
  16. 16.1/10 + 3/8 =
  17. 17.2/6 + 1/2 =
  18. 18.6/8 − 2/11 =
  19. 19.8/9 + 1/2 =
  20. 20.8/10 − 1/3 =
  21. 21.2/12 + 1/6 =
  22. 22.2/3 + 1/9 =
  23. 23.2/3 − 6/10 =
  24. 24.4/9 + 1/5 =
  25. 25.2/9 + 3/11 =
  26. 26.10/12 − 3/4 =
  27. 27.7/9 + 10/11 =
  28. 28.1/9 + 2/4 =
  29. 29.7/10 + 1/2 =
  30. 30.4/12 + 6/7 =
  31. 31.2/3 − 2/5 =
  32. 32.6/9 + 1/2 =
  33. 33.3/4 − 2/9 =
  34. 34.2/10 + 6/12 =
  35. 35.5/7 + 3/11 =
  36. 36.7/9 − 6/8 =
  37. 37.1/8 + 1/2 =
  38. 38.1/4 + 1/2 =
  39. 39.6/7 − 5/7 =
  40. 40.2/11 − 2/12 =

Answer key

  1. 5/12
  2. 55/63
  3. 7/5
  4. 107/132
  5. 25/18
  6. 11/20
  7. 29/24
  8. 7/6
  9. 1/6
  10. 8/9
  11. 53/45
  12. 1
  13. 18/35
  14. 4/11
  15. 19/18
  16. 19/40
  17. 5/6
  18. 25/44
  19. 25/18
  20. 7/15
  21. 1/3
  22. 7/9
  23. 1/15
  24. 29/45
  25. 49/99
  26. 1/12
  27. 167/99
  28. 11/18
  29. 6/5
  30. 25/21
  31. 4/15
  32. 7/6
  33. 19/36
  34. 7/10
  35. 76/77
  36. 1/36
  37. 5/8
  38. 3/4
  39. 1/7
  40. 1/66

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