13/16-11/13
Let's evaluate: 1316 -1113
13×13 -11×1616×13
ℹ13×13 = 169‖-11×16 = -176‖16×13 = 208
169 -176208
ℹ169 -176 = -7
▶Result:   -7208
The approximate value of: -7208 is:
▷ ≈ -3.3654×10-2