child's body contains 30 kilograms of water, accounting for (5/6) of his body weight. How much does this child weigh?
一个儿童体内所含水分有30千克，占体重的(5/6)，这个儿童有多重？
<gadget id="calculator">5 / 6</gadget>
<output>5/6 = around 0.833333</output>

<gadget id="calculator">30 / (5/6)</gadget>
<output>36</output>

<result>36</result>