4дм-40см.700см-70дм.300дм-30м.8м-80дм.500см-50дм.10дм-100см
<span>(1-7\15+0,4)/(8,3+4\19-15\38)</span>
<span>1) (1-7\15+0,4)=1-0,46667+0,4=0,93333</span>
<span>2) (8,3+4\19-15\38)=8,3+0,21053-0,39474=8,11579</span>
<span>3) 0,93333/8,11579=</span>0,115