Aunt Wang went to the clothing wholesale market to buy men's and women's clothes at a ratio of 2:3. In the actual selection, the number of men's clothing remains the same, and women's clothing is purchased 15 fewer than planned, and the number of women's clothing is equivalent to (2/3) that of men's clothing. How many pieces of men's clothing did Aunt Wang buy?
王阿姨去服装批发市场准备按2：3购进男、女两种服装．实际选货时，男装件数不变，女装比计划少购进15件，女装的件数就相当于男装的(2/3)．王阿姨购进了男装多少件？
<gadget id="calculator">3 / 2</gadget>
<output>3/2 = around 1.5</output>

<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">(3/2) - (2/3)</gadget>
<output>5/6 = around 0.833333</output>

<gadget id="calculator">15 / (5/6)</gadget>
<output>18</output>

<result>18</result>