To determine how many cupcakes you can frost, you need to find the ratio of cupcakes to icing required. According to the given information:
- Two cupcakes require 2/3 of a cup of icing.
- This means that one cupcake requires (2/3) / 2 = 1/3 cup of icing.
Now, you can calculate how many cupcakes can be frosted with one cup of icing:
Number of cupcakes frosted = (1 cup of icing) / (1/3 cup of icing per cupcake)
Number of cupcakes frosted = (1 cup) / (1/3 cup) = 3 cupcakes
So, with one cup of icing, you would be able to frost 3 cupcakes.