A book was originally priced at 10.8 yuan, but the current price has been reduced by 5%. How much is it now?
一本书原定价10.8元，现在的价格降低了5%．现在多少元？
<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">10.8 * (19/20)</gadget>
<output>10.26</output>

<result>10.26</result>