It is known that the ratio of length to width of a rectangle is 5:3, if the width is 6 cm, what is the length in cm?
已知长方形的长与宽的比是5：3，若宽为6cm，则长是多少cm．
<gadget id="calculator">5 / 3</gadget>
<output>5/3 = around 1.666667</output>

<gadget id="calculator">6 * (5/3)</gadget>
<output>10</output>

<result>10</result>