August began working on a computer program. After 7 1/5 hours, he had completed 20 1/10 lines of code. What was his unit rate of programming in lines of code per hour?

Answer 1

You can do: 20 1/10 ÷ 7 1/5
Or: 20.1 ÷ 7.2

Answer 2

For unit rates you do quantity ÷ time