What is 1 2 of 2 3?

One half of two thirds is one third. The of means multiply so your equation looks like this 1/2 x 2/3 = 2/6. 2/6ths reduced is 1/3. You can also see that it equals 2/3 by looking at the 2. If you have 2 of something usually dividing it in half leaves you with one of something.