Final answer:
The fraction where adding 2 to the numerator results in ½ and subtracting 1 from the denominator results in ⅓ is 5/14.
Step-by-step explanation:
We need to find a fraction where adding 2 to the numerator gives us ½, and subtracting 1 from the denominator gives us ⅓. Let's represent the unknown fraction as ⅗, where x is the numerator, and y is the denominator.
According to the problem:
- When 2 is added to the numerator: ⅗ + 2 = ½
- When 1 is subtracted from the denominator: ⅗ - ⅐ = ⅓
We can then set up two equations based on the above information:
- ⅗ + 2/y = 1/2
- ⅗/(y - 1) = 1/3
To solve for x and y, we can cross-multiply and get two separate equations:
- 2x + 4 = y
- 3x = y - 1
After simplifying, we can set the two equations equal to each other since both equal y:
2x + 4 = 3x - 1
Solving for x, we get x = 5. Plugging x = 5 into either equation, we find y = 14. Therefore, our original fraction is 5/14.