Answer:
\(\frac{997}{1000}\).
Step-by-step explanation:
Given : 0.997.
To find : write a fraction.
Solution : We have given that 0.997.
We can write it as \(\frac{997}{1000}\).
We used 1000 in denominator because of decimal before 3 digit number.
Therefore, \(\frac{997}{1000}\).