To divide \( \frac{1}{15} \) by \( 8 \), we can rewrite the division as multiplication by the reciprocal:
\[ \frac{1}{15} \div 8 = \frac{1}{15} \times \frac{1}{8} \]
Now, multiply the fractions:
\[ \frac{1 \times 1}{15 \times 8} = \frac{1}{120} \]
Thus, the answer in simplest form is:
\[ \frac{1}{120} \]
So you can fill in the boxes with:
Numerator: 1
Denominator: 120