The correct answer is:
$0.125$
Explanation
Convert the fraction to a decimal by dividing the numerator by the denominator (long division). Divide 1.000 by 8: 8 goes into 10 once (remainder 2), into 20 twice (remainder 4), into 40 five times (remainder 0), so the decimal terminates at 0.125.
Steps:
- $$\frac{1}{8}=1\div8$$
- Long division remainders: $$10-8=2,\quad20-16=4,\quad40-40=0$$
- Therefore: $$\frac{1}{8}=0.125$$
Therefore, $1/8$ as a decimal is $0.125$.