In a farm, the number of sheep (4/7) is equal to the number of goats (2/9). There are 162 goats. How many sheep are there?
一个饲养场，绵羊只数的(4/7)与山羊只数的(2/9)相等，山羊有162只，绵羊有多少只？
<gadget id="calculator">2 / 9</gadget>
<output>2/9 = around 0.222222</output>

<gadget id="calculator">4 / 7</gadget>
<output>4/7 = around 0.571429</output>

<gadget id="calculator">(2/9) / (4/7)</gadget>
<output>7/18 = around 0.388889</output>

<gadget id="calculator">162 * (7/18)</gadget>
<output>63</output>

<result>63</result>