A baker used 2/3 cup of flour to make 1/3 of a recipe. How much flower would the baker use to make the whole recipe?

2 cups

Step-by-step explanation:

cups of flour: part of a recipe

2/3 1/3

We want a whole recipe so we need to multiply each part of the ratio by 3

2/3*3 1/3*3

2 1

We need 2 cups of flour for a whole recipe