Final answer:
To write 1 1/4% as a fraction in simplest form, convert the percent to a decimal, and then convert the decimal to a fraction. Simplify the resulting fraction.
Step-by-step explanation:
To write 1 1/4% as a fraction in simplest form, we can first convert the percent to a decimal. The percent can be written as 1.25%. Dividing 1.25 by 100, we get 0.0125.
To convert the decimal to a fraction, we can place it over 1. The fraction becomes 0.0125/1. We can then multiply both the numerator and denominator by 10000 to eliminate the decimal. This gives us 125/10000.
Finally, we can simplify the fraction by dividing both the numerator and denominator by their greatest common divisor, which is 25. Dividing 125 by 25 gives us 5, and dividing 10000 by 25 gives us 400. Therefore, 1 1/4% written as a fraction in simplest form is 5/400.