PLEASE HELP ME WITH THIS QUESTION I REALLY DONT UNDERSTAND

Here is the google drive link for the while project and codes.

https://drive.google.com/drive/folders/0BwzkwkfSiEnRNnZVRFIxeWJxOW8?usp=sharing

- You need to implement SimpleFraction class which is within package PJ1

See PJ1/SimpleFraction.java and PJ1/SimpleFractionInterface.java for specifications

- Use PJ1_Test.java to test correctness of your proggram

- Compile programs (you are in directory containing Readme file):

javac PJ1/*.java

javac PJ1_Test.java

- Run programs (you are in directory containing Readme file):

// Run tests in SimpleFraction class

java PJ1.SimpleFraction

// Run main test program

java PJ1_Test