A bag of sugar weighs (5/7) kilograms, and it is distributed to 3 people on average, how many kilograms can each person get.
一包糖重(5/7)公斤，平均分给3个人，每人可以得到多少公斤．
<gadget id="calculator">5 / 7</gadget>
<output>5/7 = around 0.714286</output>

<gadget id="calculator">(5/7) / 3</gadget>
<output>5/21 = around 0.238095</output>

<result>5/21 = around 0.238095</result>