The decimal number .9375 can be expressed as a fraction in its simplest form. This process involves converting the decimal into a fraction by placing the decimal portion over the place value of the last digit. In this case, .9375 can be written as 9375/10000. However, this fraction is not in its simplest form, as both the numerator and denominator share a common factor of 125. Dividing both by 125 results in the simplified fraction 75/80, which can be further reduced to 15/16. This is the final answer, as 15/16 is the simplest form of .9375 as a fraction.