fahrenheit 131 di ubah kecelcius dan reamur

131° fahrenheit =...........°c =............°r
c =5/9×(131-32)
=5/9×99
= 495/9
= 55°c
r = 4/9×(131-32)
= 4/9×99
= 396/9
= 44°c
maaf kalo ada salah perhitungan.