(0.2-7/15)x(-5/8)-(-5/12-0.75):2 1/3

Решите задачу:

$1)0,2- \frac{7}{15} = \frac{1}{5} - \frac{7}{15} = \frac{3-7}{15} =- \frac{4}{15} \\ 2)- \frac{4}{15} *(- \frac{5}{8} )= \frac{1}{6} \\ 3)- \frac{5}{12} -0,75=- \frac{5}{12} - \frac{3}{4} =-( \frac{5+9}{12} )=- \frac{14}{12}=- \frac{7}{6} \\ 4) - \frac{7}{6} :2 \frac{1}{3} =- \frac{7}{6} : \frac{7}{3} =- \frac{7}{6} * \frac{3}{7} =- \frac{1}{2} \\ 5) \frac{1}{6} -(- \frac{1}{2} )= \frac{1}{6}+ \frac{1}{2} = \frac{1+3}{6}= \frac{4}{6} = \frac{2}{3}$