Fill in the appropriate operation symbols between 3, 3, 7, and 7 to make the result equal to 24.
在3、3、7、7之间填上适当运算符号使结果等于24．
<gadget id="calculator">3 / 7</gadget>
<output>3/7 = around 0.428571</output>

<gadget id="calculator">3 + (3/7)</gadget>
<output>24/7 = around 3.428571</output>

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

<result>24</result>