1/6-0,2

To solve \( \frac{1}{6} - 0.2 \), we first convert \( 0.2 \) to a fraction:

\[ 0.2 = \frac{2}{10} = \frac{1}{5} \]

Now we need a common denominator to subtract the fractions. The least common multiple of 6 and 5 is 30.

Convert both fractions:

\[ \frac{1}{6} = \frac{5}{30} \]

\[ \frac{1}{5} = \frac{6}{30} \]

Now substitute back into the expression:

\[ \frac{5}{30} - \frac{6}{30} = \frac{5 - 6}{30} = \frac{-1}{30} \]

Thus,

\[ \frac{1}{6} - 0.2 = -\frac{1}{30} \]