A bag contains 7 lavender marbles, 11 turquoise marbles and 5 rainbow marbles. What is the chance of drawing a rainbow marble? If a rainbow marble is drawn then placed back into the bag, and a second marble is drawn, what is the probability of drawing a lavender marble? Give solutions exactly in reduced fraction form, separated by a comma.

Is it 5/23 chance of drawing a rainbow marble?? And,
7:23 probability of drawing a lavender marble??

Yes.

Since the rainbow marble is returned to the bag. The denominator is 23 again, starting anew.