The ratio of length to width of a rectangle is 5:3, the length is 35 cm, what is the width in cm?
一个长方形长和宽的比是5：3，长是35厘米，宽是多少厘米？
<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">35 * (3/5)</gadget>
<output>21</output>

<result>21</result>