The original price of a piece of clothing is 100 yuan, 10% off first, and then 15% off on top of the discount, what is the current price of this piece of clothing?
一件衣服原价100元，先打九折，后又在打折的基础上打八五折，这件衣服现在的售价是多少元．
<gadget id="calculator">90 / 100</gadget>
<output>9/10 = around 0.9</output>

<gadget id="calculator">85 / 100</gadget>
<output>17/20 = around 0.85</output>

<gadget id="calculator">100 * (9/10) * (17/20)</gadget>
<output>153/2 = around 76.5</output>

<result>153/2 = around 76.5</result>