my country's "National Flag Law" stipulates: the ratio of the length and width of the national flag is 3:2, the width of the school national flag is 1.2 meters, and what is the length.
我国《国旗法》规定：国旗长和宽的比是3：2，学校国旗的宽是1.2米，长是多少．
<gadget id="calculator">3 * 1.2</gadget>
<output>3.6</output>

<gadget id="calculator">3.6 / 2</gadget>
<output>1.8</output>

<result>1.8</result>