When converting Farrenheit to Celcius, why is there only 32degrees difference between the freezing points of 32 and 0, but 110 degrees difference between the boiling points of 210 and 75 degrees?

huh?

in Fahrenheit the boiling point of water is 212º
in Celcius it is 100º

your conversion formula is
F = (9/5)C + 32 or
C = 5/9(F - 32)

why are you even subtracting the two values, they are unlike things.

that's like saying 12 apples - 8 oranges = 4 'something' ????

where do the numbers 210 and 75 come from?