A pile of candies can be eaten by 18 children and 6 adults (5/16); if 42 children and 40 adults can be eaten at one time. Now there are 28 adults, at least how many children are needed to eat this pile of candy at one time?
一堆糖果，如果18个小孩和6个大人一起可以吃掉(5/16)；如果42个小孩和40个大人一起可以一次吃完．现在有28个大人，至少需要多少个小孩才能一次将这堆糖果吃完？
<gadget id="calculator">6 / 6</gadget>
<output>1</output>

<gadget id="calculator">5 / 16</gadget>
<output>5/16 = around 0.3125</output>

<gadget id="calculator">(5/16) / 6</gadget>
<output>5/96 = around 0.052083</output>

<gadget id="calculator">(5/96) * 14</gadget>
<output>35/48 = around 0.729167</output>

<gadget id="calculator">1 - (35/48)</gadget>
<output>13/48 = around 0.270833</output>

<gadget id="calculator">40 - 14</gadget>
<output>26</output>

<gadget id="calculator">(13/48) / 26</gadget>
<output>1/96 = around 0.010417</output>

<gadget id="calculator">(1/96) * 28</gadget>
<output>7/24 = around 0.291667</output>

<gadget id="calculator">1 - (7/24)</gadget>
<output>17/24 = around 0.708333</output>

<gadget id="calculator">(1/96) * 40</gadget>
<output>5/12 = around 0.416667</output>

<gadget id="calculator">1 - (5/12)</gadget>
<output>7/12 = around 0.583333</output>

<gadget id="calculator">(7/12) / 42</gadget>
<output>1/72 = around 0.013889</output>

<gadget id="calculator">(17/24) / (1/72)</gadget>
<output>51</output>

<result>51</result>