Divide (3/7) of a piece of cake into 3 parts on average, and each part is the amount of this cake.
把一张饼的(3/7)平均分成3份，每份是这张饼的多少．
<gadget id="calculator">3 / 7</gadget>
<output>3/7 = around 0.428571</output>

<gadget id="calculator">(3/7) / 3</gadget>
<output>1/7 = around 0.142857</output>

<result>1/7 = around 0.142857</result>