Zhangcun digs a canal, and plans to dig 12 meters a day, which will be completed in 15 days. It actually took 20 days to finish digging, how many meters is actually dug every day?
张村挖一条水渠，计划每天挖12米，15天挖完．实际用了20天才挖完，实际每天挖多少米？
<gadget id="calculator">15 / 20</gadget>
<output>3/4 = around 0.75</output>

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

<result>9</result>