The first fabric group made 16 bows and completed (2/7) of this group's plan. How many bows did the first group plan to make.
第一布艺小组做了16个蝴蝶结，完成了本组计划的(2/7)，则第一组计划做多少个蝴蝶结．
<gadget id="calculator">2 / 7</gadget>
<output>2/7 = around 0.285714</output>

<gadget id="calculator">16 / (2/7)</gadget>
<output>56</output>

<result>56</result>