What is 98/99 as a percentage? It is 98.99%. This number tells you that the fraction is almost a whole, just a tiny bit short of 100 %.
Being 98.99% means the value is very close to one whole unit. In everyday terms, you can think of it as “almost all” of something, with only 1 % left out.
You often see this kind of percentage in quality control, where a product passes a test 98.99 % of the time. It shows a high level of reliability while still acknowledging a small margin of error.
Because the figure is rounded to two decimal places, the exact value is slightly different, but for most practical uses 98.99% is precise enough.