Eighths as a decimal

Recall the decimal for $\frac{1}{8}$ and scale it.

1. Start from $\frac{1}{8}=0.125$.
2. Multiply by $3$: $3\times 0.125=0.375$.
3. Equivalently $\frac{3}{8}=\frac{375}{1000}$.
4. The decimal is $0.375$.

Answer: $0.375$