Xiao Ming's family has 24 chickens, among which hens account for (7/8), how many hens are there?
小明家养了24只鸡，其中母鸡占(7/8)，母鸡有多少只？
<gadget id="calculator">7 / 8</gadget>
<output>7/8 = around 0.875</output>

<gadget id="calculator">24 * (7/8)</gadget>
<output>21</output>

<result>21</result>