What is the temperature of 98.6 degrees Fahrenheit equal to in Celsius?

Answer 1

(deg F + 40) x 5 / 9 - 40 = deg C

and

(deg C + 40) x 9 / 5 - 40 = deg F

so

(98.6 + 40) x 5 / 9 - 40 = 138.6 x 5 / 9 - 40 = 77 - 40 = 37 deg C

so answer is 37 deg C