Question

Б) n:5 2/3=1 7/9:1 7/27

Answer 1

$n:5 frac{2}{3}=1frac{7}{9}:1frac{7}{27}\\n:frac{17}{3}=frac{16}{9}:frac{34}{27} \\n cdot frac{3}{17}= frac{16}{9} cdot frac{27}{34}\\n=frac{16cdot 27}{9cdot 34}:frac{3}{17}\\n= frac{16cdot 27cdot 17}{9cdot 34cdot 3}\\n=frac{(2cdot 8)cdot (3cdot 9)cdot 17}{9cdot (2cdot 17)cdot 3}= frac{2cdot 8}{2}=8$

Answer 2

не верно

Answer 3

n*3/17=16/9*27/34

Answer 4

Уже исправила