The area of a rectangle is (4/5) square meters, its length is 2 meters, how many meters is its width?
一个长方形的面积是(4/5)平方米，它的长是2米，宽是多少米？
<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">(4/5) / 2</gadget>
<output>2/5 = around 0.4</output>

<result>2/5 = around 0.4</result>