Mom deposits RMB 5,000 in the bank for one year, with an annual interest rate of 1.98% and interest tax of 20%. After maturity, how much can mother get back the principal and interest from the bank?
妈妈将5000元人民币存入银行，定期一年，年利率1.98%，利息税20%．到期后，妈妈可从银行取回本金和利息共多少元？
<gadget id="calculator">1.98 / 100</gadget>
<output>0.0198</output>

<gadget id="calculator">5_000 * 0.0198 * 1</gadget>
<output>99</output>

<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 - (1/5)</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">99 * (4/5)</gadget>
<output>396/5 = around 79.2</output>

<gadget id="calculator">5_000 + (396/5)</gadget>
<output>25_396/5 = around 5_079.2</output>

<result>25_396/5 = around 5_079.2</result>