Question

2 2/3:3 1/3=х:3,5 найдите неизвестный член пропорции

Answer 1

8/3 : 10/3 = х : 3,5
0,8 = х : 3,5
х = 2,8

Answer 2

3 1/3*х = 2 2/3* 3,5
10/3*х = 8/3*35/10
10/3*х = (8*35)/(3*10)
10/3*х= 28/3
х = 28/3 : 10/3
х = 28/3 * 3/10
х = 28/10
х = 2,8