Irene R. answered 09/02/20
BS in Mechanical Engineering and Certified math teacher for 13 years
Hi Ariana,
Since 5/5 is equivalent to 1 whole, there would be 15/5 in 3 wholes. For the mixed number 3 1/5, there would be 15/5 plus 1/5 additional for a total of 16/5.
For the division portion of your question, 16 divided by 5 is equal to 3.2