Question

2 1/7:x = 2 19/28: 3 3/4
Можете помочь?

Answer 1

15/7 : x = 75/28 : 15/4
15/7 : x = 75/28 * 4/15
15/7 : x = 5/7
x = 15/7 : 5/7
x = 15/7 * 7/5
x = 3