Students A, B, and C all like to collect stamps. A has 18 stamps, which is equivalent to (3/4) that of B. The ratio of the number of stamps of C to the number of B is exactly 2:3. Who has the least stamps? ? How many sheets are there?
甲，乙，丙三位同学都喜欢集邮，甲有邮票18张，相当于乙的(3/4)，丙的邮票张数跟乙的张数的比恰好是2：3，谁的邮票最少？是多少张？
<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">18 / (3/4)</gadget>
<output>24</output>

<gadget id="calculator">24 / 3</gadget>
<output>8</output>

<gadget id="calculator">8 * 2</gadget>
<output>16</output>

<result>16</result>