Divide the moon cake into 7 parts on average, and 5 of them are the number of moon cakes (expressed in fractions).
把一个月饼平均分成7份，其中的5份是一个月饼的多少(用分数表示)．
<gadget id="calculator">7 / 1</gadget>
<output>7</output>

<gadget id="calculator">5 / 7</gadget>
<output>5/7 = around 0.714286</output>

<result>5/7 = around 0.714286</result>