37/73 as a percentage is 50.68%. This value is the rounded result you get when you change the fraction into a percent. It shows that a little more than half of the whole is represented by 37 out of 73.
The fraction 37/73 cannot be simplified further, so it stays exactly as it is. When you compare it to a whole, you see that it is close to one‑half, but a little bigger. That’s why the percentage is just over 50 %.
Knowing the percent form is handy for quick estimates. If you see 37 out of 73 items, you can think of it as roughly half of the total, or more precisely 50.68% of the group. This makes it easier to communicate the size of the part in everyday language.