A miniature part is 5cm long on the design drawing. If the scale of this drawing is 100:1, what is the actual length of the part in millimeters?
一种微型零件在设计图上长为5cm，若这幅图的比例尺是100：1，则该零件的实际长度是长多少毫米
<gadget id="calculator">5 / 100</gadget>
<output>1/20 = around 0.05</output>

<gadget id="calculator">(1/20) * 10</gadget>
<output>1/2 = around 0.5</output>

<result>1/2 = around 0.5</result>