please hep me with this math problem of gas laws for chemistry

Question

A sample of sulfur hexafluoride gas occupies 5.84 L at 198°C. Assuming the pressure remains constant, what temperature (in °C) is needed to reduce the volume to 2.83 L?

 Answer in units of °C

Answer 1

V1 / T1 = V2 / T2

5.84 / 471.15 = 2.83 / T2

0.0124 = 2.83 / T2

0.0124 (T2) = 2.83

T2 = 2.83 / 0.0124

T2 = 228

228 - 273.15 = -45.15°C

Answer:

-45.2°C