[plt-scheme] HTDP: Fahrenheit to celsius testing question 2.2.1

Hi folks,

I added the test: (check-expect (Fahrenheit->Celsius 96) 35.5)

and got the error message:

"The actual value 35.5 differs from 35.5, the expected value."

Why aren't they equal? I thought if both are exact that they *can* be equal.

Best wishes,

Grant