A book has 140 pages, Xiaoqiang read it (2/7) on the first day, how many pages should he read on the second day.
一本书有140页，小强第一天看了它的(2/7)，第二天应从第多少页看起．
<gadget id="calculator">2 / 7</gadget>
<output>2/7 = around 0.285714</output>

<gadget id="calculator">140 * (2/7)</gadget>
<output>40</output>

<gadget id="calculator">40 + 1</gadget>
<output>41</output>

<result>41</result>