There are 144 people in the school chorus group and dance group. The number of people in the dance group is 5/7 of the number in the chorus group. How many people are there in the chorus group?
学校合唱组和舞蹈组共有144人，舞蹈组人数是合唱组人数的(5/7)，合唱组人数有多少人？
<gadget id="calculator">5 / 7</gadget>
<output>5/7 = around 0.714286</output>

<gadget id="calculator">1 + (5/7)</gadget>
<output>12/7 = around 1.714286</output>

<gadget id="calculator">144 / (12/7)</gadget>
<output>84</output>

<result>84</result>