Question

What is the equation for 0/4×1/8? I know the answer is 0, but not sure if my method is correct

Answer 1

I'm not sure what you mean by the equation.   Zero times anything is zero.  Zero divided by anything not zero is zero.   This is zero, no particular method required.

If we really need a method, we can treat this either as

$\dfrac{0}{4} \times \dfrac{1}{8} = 0 \times \dfrac 1 8 = 0$

or

$\dfrac{0}{4} \times \dfrac{1}{8} = \dfrac{0 \times 1}{4 \times 8} = \dfrac{0}{32} = 0$