A precision part is 25mm long, how many centimeters should it be drawn on the part drawing with a scale of 12:1.
一种精密零件长25mm，把它画在比例尺是12：1的零件图上应画多少cm．
<gadget id="calculator">12 / 1</gadget>
<output>12</output>

<gadget id="calculator">12 / 10</gadget>
<output>6/5 = around 1.2</output>

<gadget id="calculator">25 * (6/5)</gadget>
<output>30</output>

<result>30</result>