The original price of a fountain pen is 15 yuan. After the price is reduced by 10%, the price is reduced by 12%. How much is the price of the pen now?
一枝钢笔原价15元，降价10%以后，又降价12%．钢笔现在售价多少元．
<gadget id="calculator">10 / 100</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">1 - (1/10)</gadget>
<output>9/10 = around 0.9</output>

<gadget id="calculator">12 / 100</gadget>
<output>3/25 = around 0.12</output>

<gadget id="calculator">1 - (3/25)</gadget>
<output>22/25 = around 0.88</output>

<gadget id="calculator">15 * (9/10) * (22/25)</gadget>
<output>297/25 = around 11.88</output>

<result>297/25 = around 11.88</result>