If tanθ=45 find the value of cosθ-sinθcosθ+sinθ?

If $\tan θ = \frac{4}{5}$ find the value of $\frac{\cos θ - \sin θ}{\cos θ + \sin θ} ?$

Matching exercise

Match the items on the right to the items on the left.

Step - 1

Step - 2

Step - 3

Step - 4