In the mathematics "24 points" game, given four natural numbers, through the four arithmetic operations of "addition, subtraction, multiplication, and division", the positions of the numbers can be exchanged, and parentheses can be added at will, but each number is only allowed to be used once. The final score is 24. Now give you four numbers 7, 3, 3, 7, please follow the game rules of "24 points" and write a formula that gets the number 24.
在数学"24点"游戏中，给定四个自然数，通过"加、减、乘、除"四则运算，可以交换数的位置，可以随意地添括号，但每个数只允许用一次，使最后得数是24．现给你四个数7、3、3、7，请你按"24点"的游戏规则，写出一个得数是24的算式．
<gadget id="calculator">3 / 7</gadget>
<output>3/7 = around 0.428571</output>

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

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

<result>24</result>