35/45 expressed as a percentage is 77.78%. This rounded figure tells you how much of a whole the fraction represents when you think in terms of hundredths.
The fraction 35/45 can be simplified to 7/9, which is a common way to see the same value in lower terms. Whether you write it as a fraction or a percentage, it still reflects the same part of a whole.
Knowing that 35/45 is about 78 percent can help when you compare it to other numbers, such as grades, discounts, or statistics. It gives a quick sense of scale without needing to work with the fraction directly.