To solve the expression \((0.008 + 0.992) : (5 \cdot 0.6 - 1.4)\), we will first simplify the numerator and the denominator separately.
Calculate the numerator: \[ 0.008 + 0.992 = 1.000 \]
Calculate the denominator: \[ 5 \cdot 0.6 = 3.0 \] Then subtract: \[ 3.0 - 1.4 = 1.6 \]
Now we can substitute back into our expression. It becomes: \[ 1.000 : 1.6 \]
To perform the division: \[ 1.000 \div 1.6 = 0.625 \]
Thus, the final result is: \[ \boxed{0.625} \]