5.阅读下面问题:
$\frac{1}{\sqrt{2}+1}$=$\frac{1×(\sqrt{2}-1)}{(\sqrt{2}+1)(\sqrt{2}-1)}$=$\sqrt{2}-1$;
$\frac{1}{\sqrt{3}+\sqrt{2}}$=$\frac{1×(\sqrt{3}-\sqrt{2})}{(\sqrt{3}+\sqrt{2})(\sqrt{3}-\sqrt{2})}$=$\sqrt{3}-\sqrt{2}$;
$\frac{1}{\sqrt{5}+2}$=$\frac{1×(\sqrt{5}-2)}{(\sqrt{5}+2)(\sqrt{5}-2)}$=$\sqrt{5}$-2.
试求:(1)$\frac{1}{{\sqrt{7}+\sqrt{6}}}$=$\sqrt{7}$-$\sqrt{6}$;
(2)$\frac{1}{{\sqrt{n+1}+\sqrt{n}}}$(n为正整数)=$\sqrt{n+1}$-$\sqrt{n}$.
(3)$\frac{1}{{1+\sqrt{2}}}+\frac{1}{{\sqrt{2}+\sqrt{3}}}+\frac{1}{{\sqrt{3}+\sqrt{4}}}+…+\frac{1}{{\sqrt{2014}+\sqrt{2015}}}+\frac{1}{{\sqrt{2015}+\sqrt{2016}}}$的值.