Final answer:
To write 4% as a fraction in simplest form, divide the percent by 100 and simplify the resulting fraction by dividing both the numerator and denominator by their greatest common factor.
Step-by-step explanation:
To write 4% as a fraction in simplest form, we need to convert the percentage to a fraction with a denominator of 100. Since the percent is 4%, we can write it as 4/100. To simplify this fraction, we divide both the numerator and denominator by their greatest common factor, which is 4. Thus, the simplest form of 4% as a fraction is 1/25.