Find the probability of this event. Enter the answer as a fraction in simplest form, as a decimal, and as a percent.

You choose a marble at random from a bag containing 12 red, 15 blue, 6 green, 7 yellow, and 20 black marbles.

The marble is red.


The probability expressed as a fraction is
The probability expressed as a decimal is
.
The probability expressed as a percent is
%.