The length of a rectangular garden is 45 meters, and the ratio of width to length is 12 meters. There are 4455 tiles in total. How many tiles are used per square meter in this rectangular garden?
一个长方形的花园长是45米，宽比长短12米，共用去4455块瓷砖，问这个长方形花园每平方米用多少块磁砖？
<gadget id="calculator">45 - 12</gadget>
<output>33</output>

<gadget id="calculator">45 * 33</gadget>
<output>1_485</output>

<gadget id="calculator">4_455 / 1_485</gadget>
<output>3</output>

<result>3</result>