Among the three numbers (3/10), 1.2, and 0.5, what is the smallest
在(3/10)、1.2、0.5这三个数中，最小的是多少
<gadget id="calculator">3 / 10</gadget>
<output>3/10 = around 0.3</output>

<result>3/10 = around 0.3</result>