On the eve of the Spring Festival, Xiao Ming's father is going to make a cube lantern frame with a side length of (9/20) meters. How many meters of thick iron wire is needed? (neglected at joints)
春节前夕，小明的爸爸要做一个棱长是(9/20)米的正方体灯笼框架，需要粗铁丝多少米？(接头处忽略不计)
<gadget id="calculator">9 / 20</gadget>
<output>9/20 = around 0.45</output>

<gadget id="calculator">(9/20) * 12</gadget>
<output>27/5 = around 5.4</output>

<result>27/5 = around 5.4</result>