Understanding the following two equations

Question

I'm reading through some texts and came across the following two lines. I'm curious how they should be read.

Volume = $4/3\enspace π r^3$

Surface Area = $4\enspace π r^2$

In the example of Volume: Is $4$ divided by $3$, multiplied by $\pi$? Is it $4/3$ of $\pi$? What's the suggested way of reading stuff like this, because it comes off as poorly-structured.

Answer 1

It’s just the constant pi multiplied by 4/3, multiplied by the radius cubed. Since multiplication is commutative, you can do it in any order.

Answer 2

It's $$V=\frac{4}{3}\pi r^3=\frac{4}{3}\cdot\frac{\pi r^3}{1}=\frac{4\cdot\pi r^3}{3\cdot1}=\frac{4(\pi r^3)}{3}=\frac{(4\pi) r^3}{3}=\frac{4\pi r^3}{3}.$$