Thick books are 14/15 centimeters (cm) thick, and thin books are 1/10 centimeters (cm) thinner than thick books. Find the sum of the thicknesses of the two books in centimeters (cm).
14/15 2 [OP_MUL] 1/10 [OP_SUB]
var_a = 0.9333333333333333
var_b = 2
var_c = var_a * var_b
var_d = 0.1
var_e = var_c - var_d
print('{:.2f}'.format(round(var_e+1e-10,2)))