Xiaojun's airplane model flies in the air for 12 minutes, and Xiaoming's airplane model flies for a shorter time (1/4) than Xiaojun's. How many minutes did Xiao Ming's airplane model fly?
小军的飞机模型在空中飞行12分钟，小明的飞机模型飞行的时间比小军的短(1/4)．小明的飞机模型飞行了几分钟？
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 - (1/4)</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">12 * (3/4)</gadget>
<output>9</output>

<result>9</result>