Rachel's recipe for Coca-Cola cupcakes calls for two-thirds of a cup of Coke and makes 10 cupcakes. She wants to make the cupcakes for her class, so she needs 25 cupcakes. How much Coke will she need for 25 cupcakes?

25/10 * 2/3 = 50 / 30 = 5/3 = 1 2/3