Решите -2 3/4+(+6,8)+(-1,26)+(+3 1/5) И это -5 1/6+(+7 1/9)+(-4 1/3)+(-7 1/9) Поже

Решите задачу:

$- 2\frac{ 3}{4} + 6.8 - 1.26 + 3 \frac{1}{5} = - \frac{11}{4} + \frac{68}{10} - \frac{126}{100} + \frac{16}{5} = - \frac{44}{100} + \frac{680}{100} - \frac{126}{100} + \frac{64}{100} = \frac{574}{100}$
$- 5 \frac{1}{6} + 7 \frac{1}{9} - 4 \frac{1}{3} - 7 \frac{1}{9} = - \frac{31}{6} + \frac{64}{9} - \frac{13}{3} - \frac{64}{9} = - \frac{31}{6} - \frac{26}{6} = - \frac{5}{6}$