Найди сумму

1. \(3\cfrac{7}{16}+2\cfrac{5}{32}=\) [ ];

2. \(1\cfrac{1}{12}+3\cfrac{4}{9}=\) [ ];

3. \(4\cfrac{1}{6}+5\cfrac{3}{14}+6\cfrac{2}{21}=\) [ ].