Решите уравнения: 2/x = 27/108 x : 2/3 = 3 3/8 : 3 2 1/3k = 4 1/2* 1 1/9 y : 4/5 = 3 1/9...

Question

Решите уравнения: 2/x = 27/108 x : 2/3 = 3 3/8 : 3 2 1/3k = 4 1/2* 1 1/9 y : 4/5 = 3 1/9 : 4/9 Заранее спасибо

Answer 1

2/х = 27/108
2 * 108 = 27х
216 = 27х
х = 216 / 27
х = 8

х : 2/3 = 3 3/8 : 3
3х = 2/3 * 3 3/8 
3х = 2 1/4 
х = 2 1/4 : 3
х = 3/4

2 1/3к = 4 1/2 * 1 1/9
2 1/3к = 5
к = 5 : 2 1/3
к = 2 1/7

y : 4/5 = 3 1/9 : 4/9 
у * 4/9 = 3 1/9 * 4/5
4/9у = 2 22/45
у = 2 22/45 : 4/9
у = 5 3/5