# Tricky Trapezium

Level pending*x*+1) cm, OB=(5*x*-3) cm, OC=(6*x*-5) cm and OD=(3*x*-1)cm where *x* is a real number, the ratio of areas\[\frac{OCD}{OAD}\] can be expressed as a fraction \[\frac{a}{b}\] in simplest form where *a* and *b* are coprime integers. Find *a*+*b*.

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