1. The problem is to convert the fraction $\frac{1}{8}$ into a decimal. 2. The formula to convert a fraction to a decimal is to divide the numerator by the denominator. 3. Here, the numerator is 1 and the denominator is 8. 4. Perform the division: $$1 \div 8 = 0.125$$ 5. Therefore, the decimal equivalent of $\frac{1}{8}$ is $0.125$. 6. This means that one eighth is equal to zero point one two five in decimal form.