Given either inches or millimeters, calculates the closest inches in fraction form, round up or down.
Why? Well have you ever been at the store and your project needs a 10mm bolt but you can't find it in metric. Take out Length Fraction Calculator type in 10mm and you find that you either need a 3/8" bolt if you want to go smaller or a 7/16" bolt if you need the next size up.
Also great if you have a digital caliper and it gives you numbers like 3.2423".
https://github.com/joeferner/android-lengthFractionCalculator
v1.1
* Display difference between estimated fraction and actual.
* Default value in edit to current value.
9Apps 4.9
