A herdsman raises 450 sheep, 60% of which are goats. How many goats are there?
某牧民养羊450只，其中60%是山羊，山羊有多少只？
<gadget id="calculator">60 / 100</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">450 * (3/5)</gadget>
<output>270</output>

<result>270</result>