A square vegetable field has a side length of 12 meters, and (5/8) of them are potatoes. How many square meters does the potato occupy?
一块正方形菜地边长是12米，其中的(5/8)种土豆，土豆占地多少平方米？
<gadget id="calculator">5 / 8</gadget>
<output>5/8 = around 0.625</output>

<gadget id="calculator">12 * 12 * (5/8)</gadget>
<output>90</output>

<result>90</result>