Ratio of Distances Ran

Medium Problem Solving And Data Analysis Ratios, Rates, And Proportional Relationships

Sam is preparing for a local marathon and decides to track his running distances over the weeks. During the first week, he runs a total of 12 miles. In the second week, he runs a total of 18 miles. What is the ratio of the distance Sam ran in the second week to the distance he ran in the first week?

Express this ratio in simplest form.