Ayuda por favor es muy importante​

The number if marbles of different colors stored in a hat is listed below: 4 red marbles 10 green marbles 7 blue marbles. without looking in the hat, dan takes out a marble at random. he replaces the marble and then takes out another marble from the hat. what is the probability that dan takes out a blue marble in both draws?

Convert the mixed numbers into improper fractions. convert the improper fraction to mixed numbers.

Express -5 2/5 as an improper fraction.