13/20-6/13
Let's evaluate: 1320 -613
13×13 -6×2020×13
ℹ13×13 = 169‖-6×20 = -120‖20×13 = 260
169 -120260
ℹ169 -120 = 49
▶Result:   49260
The numeric value of: 49260 is:
▷ ≈ 0.1885