The total weight of three apples is (15/7) kg, what is the average weight of each apple?
三个苹果共重(15/7)千克，平均每个苹果重多少千克？
<gadget id="calculator">15 / 7</gadget>
<output>15/7 = around 2.142857</output>

<gadget id="calculator">(15/7) / 3</gadget>
<output>5/7 = around 0.714286</output>

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