There are 18 boys in the calligraphy group, just accounting for 2/7 of the total number. How many people are there in the calligraphy group?
书法小组有男生18人，正好占总人数的(2/7)，书法小组共有多少人？
<gadget id="calculator">2 / 7</gadget>
<output>2/7 = around 0.285714</output>

<gadget id="calculator">18 / (2/7)</gadget>
<output>63</output>

<result>63</result>