In triangle ABC, D is the midpoint of BC, E is the midpoint of AB, P is a point on side AC such that AP:PC = 2:1 and Q is a point on AB such that QC is parallel to EP. What fraction of the area of triangle ABC is triangle QDP? Show with working

Add, subtract, multiply, or divide as indicated. list any restrictions for the variable(s) and simplify the answers when possible. 1) x-2 / x+5 + 3x / 2x-1 2) x+6 / x-6 - x^2 / x+6 3) x+9 / x-4 + x+2 / x^2-11x+28 4) x / x^2-64 + 11 / 2x^2+11x-40 5) 5 / x + 11 / x-3 - x-4 / x^2+2x-15