Divide a rectangular flower bed of 4 square meters into 5 pieces of the same size, how many square meters is each piece? (List the formula first, and then express the result in fractions)
将一个4平方米的长方形花坛分成大小相同的5块，每块是多少平方米？(先列出算式，再用分数表示结果)
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">4 * (1/5)</gadget>
<output>4/5 = around 0.8</output>

<result>4/5 = around 0.8</result>