Question

2/3 (0,3-0,5:4): 1,75 - 1,6​

Answer 1

$\displaystyle\bf\\\frac{2}{3} \cdot(0,3-0,5:4):1,75-1,6=\frac{2}{3} \cdot(0,3-0,125):1,75-1,6=\\\\\\=\frac{2}{3} \cdot 0,175:1,75-1,6=\frac{2}{3} \cdot\frac{7}{40}\cdot\frac{4}{7}-1,6=\\\\\\=\frac{1}{15} -\frac{8}{5} =\frac{1-24}{15} =-\frac{23}{15} =-1\frac{8}{15}$