Minnesota Academic Standards
MN.6.1. Number & Operation
6.1.2. Understand the concept of ratio and its relationship to fractions and to the multiplication and division of whole numbers. Use ratios to solve real-world and mathematical problems.
184.108.40.206. Identify and use ratios to compare quantities; understand that comparing quantities using ratios is not the same as comparing quantities using subtraction.
220.127.116.11. Use reasoning about multiplication and division to solve ratio and rate problems.