What is 1-4 of a 16th?

1-4 of a 16th is calculated by first determining what a 16th is, which is equal to 1/16. Then, 1-4 of that value can be expressed as 1 - (4 * (1/16)), which simplifies to 1 - (4/16), or 1 - (1/4). Therefore, 1-4 of a 16th is equal to 3/4.