The fraction 34⁄40 expressed as a percentage is 85.00%. This value tells you how much of a whole the fraction represents when it is written in percent form.
When you simplify 34⁄40, you get 17⁄20, which is another way to see the same size. Both fractions point to the same portion of a whole, just written differently.
In everyday life, 85.00% can describe things like test scores, discount rates, or the amount of a budget that has been used. It gives a quick sense of how large the part is compared to the entire amount.
Remember that percentages are just another language for fractions. Seeing 85.00% lets you compare the fraction 34⁄40 easily with other percentages you might encounter.