The price of a piano is 8,500 yuan, which is a reduction (3/20) from the original price. How much is the original price?
一架钢琴售价8500元，比原价降价了(3/20)，原价是多少元？
<gadget id="calculator">3 / 20</gadget>
<output>3/20 = around 0.15</output>

<gadget id="calculator">1 - (3/20)</gadget>
<output>17/20 = around 0.85</output>

<gadget id="calculator">8_500 / (17/20)</gadget>
<output>10_000</output>

<result>10_000</result>