To compare the numbers, we can convert them all to decimal form:
- \(0.1\) is already in decimal form.
- \(0.8\) is also in decimal form.
- \(2/5\) can be converted to decimal by dividing: \(2 \div 5 = 0.4\).
Now we have:
- \(0.1\)
- \(0.4\) (from \(2/5\))
- \(0.8\)
Putting these numbers from greatest to least gives us:
\(0.8, 0.4, 0.1\)