Use algebra to show that $$\(0.4 \ddot{3} \dot{6}=\frac{24}{55}\)$$ (2) (b) Show that $$\(\frac{\sqrt{20}+\sqrt{80}}{\sqrt{3}}\)$$ can be expressed in the form $$\(\sqrt{a}\)$$ where $$\(a\)$$ is an integer. Show your working clearly. (3)

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