Write a function that converts a temperature in degrees Fahrenheit to degrees Kelvin. The function should have one parameter, for the input temperature in Fahrenheit. The function should return a value, the input value converted to Kelvin. Kelvin is the base unit of temperature in the International System of Units. Here is the formula that will convert a value F in Fahrenheit to a value K in Kelvin. K = (F-32) * (5/9) + 273.15