□/△=7…5, when △ is the smallest, □=how much.
□/△=7…5，当△最小时，□=多少．
<gadget id="calculator">5 + 1</gadget>
<output>6</output>

<gadget id="calculator">6 * 7</gadget>
<output>42</output>

<gadget id="calculator">42 + 5</gadget>
<output>47</output>

<result>47</result>