The conversion formula between Fahrenheit and Celsius is: Fahrenheit=Celsius*1.8+32, if the temperature measured today is 86°F, what is the equivalent in °C.
华氏温度和摄氏温度的换算公式是：华氏温度=摄氏温度*1.8+32，如果测得今天的气温是86°F，那么相当于多少℃．
<gadget id="calculator">86 - 32</gadget>
<output>54</output>

<gadget id="calculator">54 / 1.8</gadget>
<output>30</output>

<result>30</result>