(11,81 + 8,19) 0,02

To calculate \((11.81 + 8.19) \ 0.02\):

First, add \(11.81\) and \(8.19\):

\[ 11.81 + 8.19 = 20.00 \]

Next, multiply the result by \(0.02\):

\[ 20.00 \times 0.02 = 0.40 \]

Thus, the final result is \(0.40\).