Problem B

Fraction Fun

A large rectangle is in the first quadrant of the Cartesian plane with its four vertices at \((0,0)\), \((8,0)\), \((8,4)\), and \((0,4)\). It is divided into eight regions labelled \(A\), \(B\), \(C\), \(D\), \(E\), \(F\), \(G\), and \(H\), as shown.

What fraction of the area of the large rectangle is the area of region \(A\)? the area of region \(B\)? the area of region \(C\)? the area of region \(D\)?

**Themes: **Geometry & Measurement, Number Sense