# What is 0.4 as a fraction in fifths?

The answer is $\frac{2}{5}$
There is only one decimal place in 0.4 so divide by 10, which gives you $\frac{4}{10}$; this simplifies by dividing by 2 to get $\frac{2}{5}$
If your decimal is something like 0.45 the you get $\frac{45}{100}$ and this can be divided by 5 to get $\frac{9}{20}$