The number of people in the science and technology group of the school is the chorus group (2/3), and the art group (3/4). There are 72 people in the chorus. How many people are there in the art group?
学校科技组的人数是合唱组的(2/3)，又是美术组的(3/4)．合唱组有72人．美术组有多少人？
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">(2/3) / (3/4)</gadget>
<output>8/9 = around 0.888889</output>

<gadget id="calculator">72 * (8/9)</gadget>
<output>64</output>

<result>64</result>