How do you use fractions of an inch?

One of these reviews says this app lets you convert fractions of an inch but I can only see how to use decimal inches. Thats the whole reason I bought it! I will keep playing with it but if it cant deal with fractions of an inch its worthless to me. I might as well use a free app.

Bulleit123 about Converter (unit conversions), v2.7.1