There are 300 female workers in a toy factory, and the number of male workers is half of the number of female workers. How many male and female workers are there in total?
某玩具厂有女工人300人，男工人数是女工人数的一半，男、女工一共有多少人？
<gadget id="calculator">300 / 2</gadget>
<output>150</output>

<gadget id="calculator">300 + 150</gadget>
<output>450</output>

<result>450</result>