Zhang Qiang's family contracted two fish ponds. The area of the soft-shelled turtle pond is 600m**2, and the area of the second fish pond is 60m**2 smaller than that of the soft-shelled turtle pond. What fraction of the area of the turtle pond is the area of the second fish pond?
张强家承包了两个鱼池，甲鱼池的面积是600m**2，乙鱼池的面积比甲鱼池小60m**2．乙鱼池的面积是甲鱼池的几分之几？
<gadget id="calculator">600 - 60</gadget>
<output>540</output>

<gadget id="calculator">540 / 600</gadget>
<output>9/10 = around 0.9</output>

<result>9/10 = around 0.9</result>