There is a box weighing 11.14 kilograms (kg). If there are 14 fans in the box, and the empty box weighs 0.5 kilograms (kg), how many kilograms (kg) does one fan weigh?
11.14 0.5 [OP_SUB] 14 [OP_DIV]
var_a = 11.14
var_b = 0.5
var_c = var_a - var_b
var_d = 14
var_e = var_c / var_d
print('{:.2f}'.format(round(var_e+1e-10,2)))