Are the expression below equal to X -1/3

What is the value of x in the diagram below?

Ineed ! the person who answers and shows their work on they got the answer first will be marked the !

Miguel’s teacher asks him to color 4/8 of his grid. he must use 3 colors: red, blue, and green. there must be more green sections than red sections. how can miguel color all the sections of his grid to follow all the rules