If a recipe calls for 2/3 cup flour and I am making 1/2 how much flour would I need?

well, I'd guess that would be 1/2 of 2/3

So, what's 1/2 of 2?
Take that many "thirds"

2/6

To determine how much flour you would need if you are making 1/2 of the recipe, you'll need to scale down the amount of flour proportionally.

Here's how you can calculate it:

1. Start with the original amount of flour called for in the recipe, which is 2/3 cup.
2. Since you are making 1/2 of the recipe, you need to multiply the original amount of flour by 1/2.
(2/3) * (1/2) = 2/6 = 1/3 cup

Therefore, if you are making 1/2 of the recipe, you would need 1/3 cup of flour.