The current price of a pen is 36 yuan, which is 1/7 lower than the original price. How much is the original price?
一支钢笔现价36元，比原价降低了(1/7)，原价是多少元？
<gadget id="calculator">1 / 7</gadget>
<output>1/7 = around 0.142857</output>

<gadget id="calculator">1 - (1/7)</gadget>
<output>6/7 = around 0.857143</output>

<gadget id="calculator">36 / (6/7)</gadget>
<output>42</output>

<result>42</result>