( 18 1/6-(3, 06:7 1/2+ 3 2/5 ×0, 38))×(19-2 3/8×5 1/3)

( 18 \frac{1}{6} -(3, 06:7 \frac{1}{2} + 3 \frac{2}{5} *0, 38))*(19-2 \frac{3}{8} *5 \frac{1}{3} )=104 \frac{13}{45}1) 3, 06:7 \frac{1}{2} =3,06:7,5=0,4082)  3 \frac{2}{5} *0, 38=3,4*0,38=1,2923) 0,408+1,292=1,74) 18 \frac{1}{6} -1,7=18 \frac{1}{6} -1 \frac{7}{10} =18 \frac{10}{60}-1 \frac{42}{60} =16 \frac{28}{60}=16 \frac{7}{15} 5) 2 \frac{3}{8} *5 \frac{1}{3} = \frac{19}{8}* \frac{16}{3} = \frac{19}{1} * \frac{2}{3} = \frac{38}{3}=12 \frac{2}{3} 6) 19-12 \frac{2}{3} =6 \frac{1}{3} 7) 16 \frac{7}{15} *6 \frac{1}{3} = \frac{247}{15} * \frac{19}{3} = \frac{4693}{45}=104 \frac{13}{45}