0,4-+8(5-0,8*5/8)-5:2 1/2 (дробная черта) (1 7/8*8-(8,9-2,6:2/3))*34 2/5

\frac{0,4+8*(5-0,8* \frac{5}{8})-5:2 \frac{1}{2} }{(1 \frac{7}{8}*8-(8,9-2,6: \frac{2}{3}))*34 \frac{2}{5} }=0,1 1.0,8* \frac{5}{8}= \frac{4}{8}= \frac{1}{2}=0,5 2.5-0,5=4,53.8*4,5=364.5:2 \frac{1}{2}=5: \frac{5}{2} = \frac{5*2}{5}=2 5.0,4+36=36,46.36,4-2=34,47.2,6: \frac{2}{3}=2 \frac{6}{10}: \frac{2}{3}= \frac{26}{10}: \frac{2}{3}= \frac{26*3}{10*2}= \frac{39}{10}=3,9 8.8,9-3,9=59.1 \frac{7}{8}-8= \frac{15}{8}*8=15 10.15-5=1011.10*34 \frac{2}{5}= \frac{10}{1}* \frac{172}{5}=344 12.34,4:344=0,1