(1/6) of a number is (3/5), what is the correct formula for finding this number
一个数的(1/6)是(3/5)，求这个数，正确的算式是多少
<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">(3/5) / (1/6)</gadget>
<output>18/5 = around 3.6</output>

<result>18/5 = around 3.6</result>