How many peaches are (4/7) of 28 peaches?
28个桃子的(4/7)是多少个桃子．
<gadget id="calculator">4 / 7</gadget>
<output>4/7 = around 0.571429</output>

<gadget id="calculator">28 * (4/7)</gadget>
<output>16</output>

<result>16</result>