$$3\frac{7}{10} = 3 + \frac{7}{10} = 3 + 0.7 = 3.7$$
$$5\frac{18}{100} = 5 + \frac{18}{100} = 5 + 0.18 = 5.18$$
$$11\frac{14}{1000} = 11 + \frac{14}{1000} = 11 + 0.014 = 11.014$$
$$19\frac{511}{10000} = 19 + \frac{511}{10000} = 19 + 0.0511 = 19.0511$$
Ответ: 3.7; 5.18; 11.014; 19.0511