On a drawing with a scale of 10:1, a precision part is measured to be 15cm long. What is the actual length of this part in cm?
在比例尺10：1的图纸上，量得一件精密零件长15cm，这个零件的实际长多少cm．
<gadget id="calculator">15 / 10</gadget>
<output>3/2 = around 1.5</output>

<result>3/2 = around 1.5</result>