The expression \( \frac{1}{5} \times (-4) \) is calculated as follows:

\[
\frac{1}{5} \times (-4) = \frac{1 \times (-4)}{5} = \frac{-4}{5}
\]

So, the result is:

\[
\frac{-4}{5} \text{ or } -0.8
\]

Would you like any more details or have any questions?

Here are 5 related questions for further practice:

1. What is \( \frac{3}{4} \times (-2) \)?
2. Simplify \( \frac{-2}{3} \times 6 \).
3. What is \( \frac{5}{6} \times (-7) \)?
4. Calculate \( \frac{-3}{8} \times 4 \).
5. Solve \( \frac{2}{9} \times (-3) \).

**Tip:** Always multiply the numerator by the given number (positive or negative) and then simplify if needed.

Learn how to calculate the multiplication of fractions involving a negative number. This problem involves multiplying 1/5 by -4, resulting in -4/5 or -0.8. Suitable for students in Grades 5-7.

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