Call has 125 marvels 50s marble to read and the rest are other colors what is the ratio of the number of red marbles to the total number of marbles express in simplest form

I am assuming that the question you are asking is basically, "There are a total of 125 marbles and 50 red marbles.  What is the ratio of red marbles to the total number?"

If this is what you are asking, we begin by setting up the ratio of red marbles to all marbles.  This is 50:125, because there are 50 red marbles and a total of 125 marbles.

It may seem that we are done, but we are not finished yet.  In order to finish, we need to reduce the ratio.  It is clear that we can take 25 from both 50 and 125, so our new ratio is 2:5.  This ratio can not be reduced, so 2:5 is the final answer in simplest form.