A child's body contains 28 kilograms of water, accounting for (4/5) of his body weight. How many kilograms does the child weigh?
一个儿童体内所含的水分有28千克，占体重的(4/5)．这个儿童的体重是多少千克？
<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">28 / (4/5)</gadget>
<output>35</output>

<result>35</result>