Xiao Ming donated 4 yuan to Hope Primary School this time, and the money he donated was equivalent to (1/5) of Xiaohua's. How much did Xiaohua donate this time?
小明这一次向希望小学捐款4元，他捐的钱相当于小华的(1/5)，小华这次捐了多少元？
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">4 / (1/5)</gadget>
<output>20</output>

<result>20</result>