Xiao Ming has 20 yuan, Xiao Hua said to Xiao Ming, "My money is your money (4/5)". How much does Xiaohua have?
小明有20元，小华对小明说"我的钱是你的钱的(4/5)"．小华有多少元．
<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">20 * (4/5)</gadget>
<output>16</output>

<result>16</result>