The scale of a drawing of a precision part is 50:1. The height of the part measured on the drawing is 18 cm. What is the actual height of the part?
一张精密零件图纸的比例尺是50：1，在图纸上量得零件高18厘米，这个零件的实际高是多少？
<gadget id="calculator">50 / 1</gadget>
<output>50</output>

<gadget id="calculator">18 / 50</gadget>
<output>9/25 = around 0.36</output>

<result>9/25 = around 0.36</result>