Express 0.504 as a fraction in its lowest term

Pick the description of a geometric object that best matches the real world object box for a deck of card

Michelle had a birthday party. she bought a bag of candy with 96 starbursts, 72 hershey's, and 68 reese's. she wants to use all the candy she bought to make goody bags with the same amount of starbursts, hershey's and reese's in each bag. what is the largest number of bags she can make?

Is the number 128.439 a rational number