Manufacture a part, the scale is 8:1, the length of the part on the design drawing is 5 cm, what is the actual length of the part in cm?
制造一种零件，比例尺是8：1，在设计图上零件的长度是5厘米，则零件的实际长度是多少厘米．
<gadget id="calculator">8 / 1</gadget>
<output>8</output>

<gadget id="calculator">5 / 8</gadget>
<output>5/8 = around 0.625</output>

<result>5/8 = around 0.625</result>