Chuyển các hỗn số 2 3/5 ; 1 2/3 ; 1 1/9 ; 5 8/ 9 ; 4 3/8 ; 2 6/7 ; 3 12/25 ; 4 2/9 thành phân số

\(2\frac{3}{5} = 2 + \frac{3}{5} = \frac{{10}}{5} + \frac{3}{5} = \frac{{13}}{5}\)

\[1\frac{2}{3} = 1 + \frac{2}{3} = \frac{3}{3} + \frac{2}{3} = \frac{5}{3}\]

\[1\frac{1}{9} = 1 + \frac{1}{9} = \frac{9}{9} + \frac{1}{9} = \frac{{10}}{9}\]

\[5\frac{8}{9} = 5 + \frac{8}{9} = \frac{{45}}{9} + \frac{8}{9} = \frac{{57}}{9}\]

\[4\frac{3}{8} = 4 + \frac{3}{8} = \frac{{32}}{8} + \frac{3}{8} = \frac{{35}}{8}\]

\[2\frac{6}{7} = 2 + \frac{6}{7} = \frac{{14}}{7} + \frac{6}{7} = \frac{{20}}{7}\]

\[3\frac{{12}}{{25}} = 3 + \frac{{12}}{{25}} = \frac{{75}}{{25}} + \frac{{12}}{{25}} = \frac{{87}}{{25}}\]

\[4\frac{2}{9} = 4 + \frac{2}{9} = \frac{{36}}{9} + \frac{2}{9} = \frac{{38}}{9}\]