Question

помогите даю 10 баллов​

Answer 1

Ответ:

$\frac{35 \times 28 + 35 \times 32}{60 \times 15} = \frac{35(28 + 32)}{60 \times 15} = \frac{35 \times 60}{60 \times 15} = \frac{35}{15} = \frac{7}{3} = 2 \frac{1}{3} \\ \frac{57 \times 62 - 57 \times 34}{28 \times 19} = \frac{57(62 - 34)}{28 \times 19} = \frac{57 \times 28}{28 \times 19} = \frac{57}{19} = 3 \\ \frac{48 \times 31 + 48 \times 19}{16 \times 100} = \frac{48(31 + 19)}{16 \times 100} = \frac{48 \times 50}{16 \times100 } = \frac{3}{2} \\ \frac{17 \times 93 - 17 \times 24}{48 \times 85} = \frac{17(96 - 24)}{48 \times 85} = \frac{17 \times72 }{48 \times 85} = \frac{9}{6 \times 5} = \frac{3}{10}$