We really just have to do a little bit of arithmetic, add some hairy fractions right over here. So let's do it. So this whole thing is going to simplify to pi times. And it looks like, let's see, our least common multiple of all of these denominators is going to be 6. So let's put everything over a denominator of 6. So 9 halves is the same thing as 27 over 6. 64 thirds is the same thing as 128 over 6.