The figure is made up of three squares overlapping as shown below. The area of square C is $$\frac{2}{5}$$ of the area of square B. The area of square B is $$\frac{5}{6}$$ of the area of square A. <hr> What fraction of the figure is unshaded? <br> $$\frac{A}{B}$$ <hr>A: <input min="0" type="number" class="lineinput" placeholder="?" /> B:<input min="0" type="number" class="lineinput" placeholder="?" />