The Venn diagram should have three concentric circles. The innermost circle is labeled "Whole numbers" and contains 0 and 7. The middle circle is labeled "Integers" and contains -6 in the area outside the Whole numbers circle. The outermost circle is labeled "Rational numbers" and contains 2.45, -7/4 (or -1.75) and 6.9 in the area outside the Integers circle.