Question

1. 0.4% $\frac{4}{10}$

Explanation:

Step1: Convert percentage to decimal

$0.4\% = \frac{0.4}{100}$

Step2: Simplify the fraction

$\frac{0.4}{100} = \frac{4}{1000} = \frac{1}{250}$

Answer:

$\frac{1}{250}$