The scale of a part drawing is 8:1. If a line segment is 56mm long on the drawing, what is its actual length?
一张零件图的比例尺是8：1，如果在图上量得某线段长56毫米，其实际长度是多少？
<gadget id="calculator">8 / 1</gadget>
<output>8</output>

<gadget id="calculator">56 / 8</gadget>
<output>7</output>

<result>7</result>