The first production workshop of Hongguang Machine Tool Factory has a total of 350 employees, and the ratio of male and female employees is 5:2. How many male employees are there?
宏光机床厂第一生产车间共有职工350人，其中男、女职工人数的比是5：2．男职工有多少人？
<gadget id="calculator">5 + 2</gadget>
<output>7</output>

<gadget id="calculator">5 / 7</gadget>
<output>5/7 = around 0.714286</output>

<gadget id="calculator">350 * (5/7)</gadget>
<output>250</output>

<result>250</result>