To express the number 019 as a fraction in simplest form, we first recognize that 019 is equivalent to 19 in numerical terms, since leading zeros do not affect the value of a number.
Now, we can express 19 as a fraction. The simplest way to do this is to write it as:
19/1
This fraction is already in its simplest form because the numerator and denominator have no common factors other than 1. Therefore, the fraction form of 019 in simplest terms is 19/1.