Решите уравнение 7/9 : 3,1 = × : 39

Question

Решите уравнение 7/9 : 3,1 = × : 39

Answer 1

( 7/9 ) : 3,1 = X : 39
( 7/9 ) : ( 31/10 ) = X : 39
70/279 = X : 39
X = 39 * ( 70/279 )
X = 2730/279
Х = 9 ( 219/279 )