Li Qiang deposits 4,000 yuan in the bank for a fixed period of one year. The annual interest rate is 1.98%. After deducting 5% interest tax, how much interest will he get after tax?
李强将4000元钱存入银行，定期一年，年利率是1.98%，扣除5%的利息税，税后得到利息多少元？
<gadget id="calculator">1.98 / 100</gadget>
<output>0.0198</output>

<gadget id="calculator">5 / 100</gadget>
<output>1/20 = around 0.05</output>

<gadget id="calculator">1 - (1/20)</gadget>
<output>19/20 = around 0.95</output>

<gadget id="calculator">4_000 * 0.0198 * 1 * (19/20)</gadget>
<output>75.24</output>

<result>75.24</result>