1) \(\frac{12}{25} = \frac{12 \cdot 4}{25 \cdot 4} = \frac{48}{100} = 0,48\)
2) \(\frac{7}{8} = \frac{7 \cdot 125}{8 \cdot 125} = \frac{875}{1000} = 0,875\)
3) \(\frac{145}{80} = \frac{29}{16} = 1,8125\)
Ответ: 1) 0,48; 2) 0,875; 3) 1,8125