Final answer:
To write 40% as a fraction in its simplest form, convert the percentage to a fraction by putting it over 100 and simplify.
Step-by-step explanation:
To write 40% as a fraction in its simplest form, you can convert the percentage to a fraction by putting it over 100. In this case, 40% becomes 40/100. To simplify the fraction, you can divide both the numerator and denominator by their greatest common divisor, which is 20. Dividing 40 by 20 gives you 2, and dividing 100 by 20 gives you 5. So, 40% can be written as the simplest fraction, 2/5.
Learn more about Converting a percentage to a fraction