Question

Найдите неизвестный член пропорции:
3,7÷11,1=х÷7/9

Answer 1

х = 3,7 * 7/9 : 11,1
х = 37/10 * 7/9 : 111/10
х = 37/10 * 7/9 * 10/111
х = 7/27

Answer 2

$\frac{3.7}{11.1} = \frac{x}{ \frac{7}{9} } \\ \\ x= \frac{ \frac{37}{10} * \frac{7}{9} }{ \frac{111}{10} } = \frac{37}{10} * \frac{7}{9} * \frac{10}{111} = \frac{37*7*10}{10*9*111} = \frac{7}{27}$