45/55 as a percentage is 81.82%. This tells you how much of a whole the fraction represents when you look at it in terms of hundred parts.
The fraction 45/55 can be reduced to 9/11, which still gives the same percentage. Whether you write it as 45/55 or 9/11, the value stays the same.
Knowing that 45/55 equals 81.82% is handy for quick estimates in everyday situations, like comparing scores, discounts, or success rates. It gives you an easy way to see the proportion in a familiar format.
