The teacher uses a piece of red cloth with a length of 108 decimeters and a width of 80 decimeters to make some triangular red flags whose right-angled sides are 27 decimeters and 16 decimeters respectively. How many sides can be made at most?
老师用一块长108分米，宽80分米的红布，做一些直角边分别是27分米和16分米的三角形红旗，最多可做多少面？
<gadget id="calculator">108 / 27</gadget>
<output>4</output>

<gadget id="calculator">80 / 16</gadget>
<output>5</output>

<gadget id="calculator">4 * 5 * 2</gadget>
<output>40</output>

<result>40</result>