Xiao Ming deposits 5,000 yuan of New Year's money in the bank for a fixed period of one year, and the annual interest rate is 2.79%.
小明把5000元压岁钱存入银行，定期一年，年利率是2.79%，到期实得本金和利息共多少元．
<gadget id="calculator">2.79 / 100</gadget>
<output>0.0279</output>

<gadget id="calculator">5_000 * 0.0279 * 1</gadget>
<output>139.5</output>

<gadget id="calculator">5_000 + 139.5</gadget>
<output>5_139.5</output>

<result>5_139.5</result>