Liu Yun mixed 1 part of honey with 8 parts of water to prepare 450 ml of honey water. How many ml of honey did he use?
刘云用1份蜂蜜加8份水调制了450毫升蜂蜜水，他用了蜂蜜多少毫升．
<gadget id="calculator">1 + 8</gadget>
<output>9</output>

<gadget id="calculator">1 / 9</gadget>
<output>1/9 = around 0.111111</output>

<gadget id="calculator">450 * (1/9)</gadget>
<output>50</output>

<result>50</result>