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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 459 · 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. 1.5/12 + 1/2 =
  2. 2.1/2 − 1/8 =
  3. 3.2/4 + 2/12 =
  4. 4.3/4 + 5/9 =
  5. 5.1/3 + 1/5 =
  6. 6.2/3 − 2/6 =
  7. 7.6/7 − 2/9 =
  8. 8.4/5 − 4/7 =
  9. 9.6/12 − 1/3 =
  10. 10.2/7 + 6/8 =
  11. 11.4/12 + 1/2 =
  12. 12.4/7 − 1/2 =
  13. 13.6/7 − 1/6 =
  14. 14.6/9 + 4/9 =
  15. 15.6/9 − 1/8 =
  16. 16.4/9 − 2/11 =
  17. 17.1/2 − 4/11 =
  18. 18.3/4 + 3/4 =
  19. 19.2/10 + 10/12 =
  20. 20.1/2 + 2/3 =
  21. 21.5/11 + 9/12 =
  22. 22.3/4 + 2/5 =
  23. 23.6/11 − 1/6 =
  24. 24.9/10 + 2/4 =
  25. 25.3/11 + 1/5 =
  26. 26.1/4 + 2/5 =
  27. 27.5/6 + 5/9 =
  28. 28.4/10 + 8/9 =
  29. 29.2/6 + 1/3 =
  30. 30.1/3 + 4/7 =
  31. 31.5/8 − 2/4 =
  32. 32.3/6 + 4/7 =
  33. 33.5/10 + 6/7 =
  34. 34.9/10 − 2/4 =
  35. 35.8/12 − 1/5 =
  36. 36.1/2 + 5/7 =
  37. 37.6/8 + 1/2 =
  38. 38.1/2 + 5/12 =
  39. 39.10/11 − 1/3 =
  40. 40.1/12 + 3/4 =

Answer key

  1. 11/12
  2. 3/8
  3. 2/3
  4. 47/36
  5. 8/15
  6. 1/3
  7. 40/63
  8. 8/35
  9. 1/6
  10. 29/28
  11. 5/6
  12. 1/14
  13. 29/42
  14. 10/9
  15. 13/24
  16. 26/99
  17. 3/22
  18. 3/2
  19. 31/30
  20. 7/6
  21. 53/44
  22. 23/20
  23. 25/66
  24. 7/5
  25. 26/55
  26. 13/20
  27. 25/18
  28. 58/45
  29. 2/3
  30. 19/21
  31. 1/8
  32. 15/14
  33. 19/14
  34. 2/5
  35. 7/15
  36. 17/14
  37. 5/4
  38. 11/12
  39. 19/33
  40. 5/6

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