Question

Write the decimal as a fraction or mixed number.

0.4

Short answer

$\frac{\mathbf{2}}{\mathbf{5}}$ is the fraction number of decimal $\mathbf{0}\mathbf{.}\mathbf{4}$.

Step-by-step solution

Step 1. Given information

Consider, the decimal $0.4$ provided in question

Step 2. Calculation 

To evaluate fraction number of decimal $0.4$, it is needed to remove the decimal as $4$ is in at tenth place and simplify the obtained fraction

Therefore, the fraction number obtained as

$\begin{array}{l}\Rightarrow 0.4=\frac{4}{10}\\ \Rightarrow 0.4=\frac{2}{5}\end{array}$

Hence,

$\frac{2}{5}$ is the fraction number of decimal $0.4$.