What is the common denominator of 27/24 and 15/18

Pj is decorating pupcakes for rocky's birthday party. her color scheme is black, purple, and green. she will use this spinner to determine the color of sprinkles on each pupcake. which model shows the probability of randomly landing on each color?

Anyone know? is appreciated! will mark brainliest if correct!

How do i make someone brainliest? (if you answer me, i might be able to make you brainliest! )