To produce a batch of parts, if 28 parts are produced every day, it will be completed in 3 days; if it is completed in 6 days, how many parts should be produced every day?
要生产一批零件，如果每天生产28个，3天刚好完成；如果6天完成，每天应生产几个零件？
<gadget id="calculator">3 / 6</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">28 * (1/2)</gadget>
<output>14</output>

<result>14</result>