A child's body contains 25 kilograms of water, accounting for only 5/8 of his body weight. How many kilograms does this child weigh?
一个儿童体内所含水份有25千克，只占体重的(5/8)，这个儿童的体重是多少千克？
<gadget id="calculator">5 / 8</gadget>
<output>5/8 = around 0.625</output>

<gadget id="calculator">25 / (5/8)</gadget>
<output>40</output>

<result>40</result>