If the same number is subtracted from the numerator and denominator of (57/58), the fractional value is (2/3). What is this number?
(57/58)的分子和分母各减去同一个数，分数值是(2/3)，这个数是多少？
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">(2/3) * 58</gadget>
<output>116/3 = around 38.666667</output>

<gadget id="calculator">57 - (116/3)</gadget>
<output>55/3 = around 18.333333</output>

<gadget id="calculator">1 - (2/3)</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">(55/3) / (1/3)</gadget>
<output>55</output>

<result>55</result>