The length of a rectangle is 3m, its area is (15/4)m, and its width is in m.
一个长方形的长是3m，它的面积是(15/4)m，它的宽是多少m．
<gadget id="calculator">15 / 4</gadget>
<output>15/4 = around 3.75</output>

<gadget id="calculator">(15/4) / 3</gadget>
<output>5/4 = around 1.25</output>

<result>5/4 = around 1.25</result>