In the figure shown, the ratio of the shaded area to the area of rectangle ABCD is 1 : 4. The ratio of the shaded area to the area of rectangle EFGH is 2 : 5. <hr>The ratio of the unshaded area of rectangle ABCD to the unshaded area of the rectangle EFGH is <input min="0" type="number" id ="imp5pg103q3b_1" class="lineinput" placeholder="?" /> : <input min="0" type="number" id ="imp5pg103q3b_2" class="lineinput" placeholder="?" />.