\(\dfrac{223\cdot75-23\cdot37+223\cdot25-23\cdot63}{100\cdot76-12\cdot3,5-5,8:0,1}\)
\(=\dfrac{223\left(75+25\right)-23\left(37+63\right)}{100\cdot76-42-58}\)
\(=\dfrac{100\cdot223-23\cdot100}{100\cdot76-100}\)
\(=\dfrac{100\left(223-23\right)}{100\left(76-1\right)}=\dfrac{200}{75}=\dfrac{8}{3}\)