Use a piece of rectangular red cloth with a length of 12 meters and a width of 6 decimeters to make a right-angled triangle flag. The two right-angled sides of the flag are 3 decimeters. How many small flags can be made from this rectangular cloth?
用一块长12米、宽6分米的长方形红布做直角三角形小旗，小旗的两条直角边都是3分米．这块长方形布一共能做多少面小旗？
<gadget id="calculator">12 * 6</gadget>
<output>72</output>

<gadget id="calculator">3 / 2</gadget>
<output>3/2 = around 1.5</output>

<gadget id="calculator">3 * (3/2)</gadget>
<output>9/2 = around 4.5</output>

<gadget id="calculator">72 / (9/2)</gadget>
<output>16</output>

<result>16</result>