Question

пожалуйста помогите!:3 номер 392)

Answer 1

1) $frac{35(28 + 32)}{60 * 15} = frac{7(28 + 32) }{60 * 3} = frac{7 * 60}{60 * 3} = frac{7}{3} = 2 frac{1}{3}$
2) $frac{57(62-34)}{28 * 19} = frac{3(62-34)}{28} = frac{3 * 28}{28} = 3$
3) $frac{48(31+19)}{16 * 100} = frac{3(31+19)}{100} = frac{3 * 50}{100} = frac{3}{2} = 1 frac{1}{2}$ = 1,5
4) $frac{17(96 - 24)}{48 * 85} = frac{96 - 24}{48 * 5} = frac{72}{48 * 5} = frac{9}{6 * 5} = frac{3}{10}$