On a drawing with a scale of 50:1, the length of the part is measured to be 5 cm. How many millimeters is this part actually long?
在一张比例尺为50：1的图纸上，量得零件长5厘米．这个零件实际长多少毫米．
<gadget id="calculator">50 / 1</gadget>
<output>50</output>

<gadget id="calculator">5 / 50</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">(1/10) * 10</gadget>
<output>1</output>

<result>1</result>