Dongfang Primary School used 54 cubic meters of sand to pave a path with a width of 3 meters and a thickness of 20 centimeters. How long is the path in meters? (solution by equation)
东方小学用54立方米的沙子铺一条宽3米的小路，沙子铺20厘米厚．这条小路的长是多少米？(用方程解)
<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">3 * (1/5)</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">54 / (3/5)</gadget>
<output>90</output>

<result>90</result>