69/99 as a percentage is 69.70%. This rounded figure tells you how much of a whole the fraction represents when you think in terms of 100 parts.
The fraction 69/99 can be simplified by dividing both the numerator and the denominator by their greatest common divisor, which is 3. That gives you 23/33, a simpler way to see the same value.
Even after simplifying, the percentage stays the same because it reflects the same proportion of the whole. Whether you write it as 69/99, 23/33, or 69.70%, the amount doesn't change.
Knowing the percentage helps you compare this fraction to other values easily, especially when dealing with charts, grades, or any situation that uses a 0‑100 scale.