Question

Вычислите: 3,3+(-5 целых 2 третьих)+(-1 целая 1/12)

Answer 1

$3.3 + ( - 5 \frac{2}{3} ) + ( - 1 \frac{1}{12} ) = 3.3 - \frac{17}{3} - \frac{13}{12} = \frac{33}{10} - \frac{17}{3} - \frac{13}{12} = \frac{99 - 170}{30} - \frac{13}{12} = - \frac{71}{30} - \frac{13}{12} = - \frac{142 + 65}{60} = - \frac{207}{60} = - \frac{69}{20} = - 3 \frac{9}{20} = - 3.45$