Uncle Zhang’s monthly salary is 3,000 yuan, and he takes out 900 yuan to repay the housing loan, and the rest is divided into deposits and living expenses at a ratio of 2:5. How much is the monthly living expenses?
小张叔叔每月工资3000元，拿出900元还房屋贷款，剩下的按2：5分配，作为存款和生活费，那么每月生活费多少钱？
<gadget id="calculator">3_000 - 900</gadget>
<output>2_100</output>

<gadget id="calculator">2 + 5</gadget>
<output>7</output>

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

<gadget id="calculator">2_100 * (5/7)</gadget>
<output>1_500</output>

<result>1_500</result>