Question

Помогите((
1. 3/7:k=5:2 1/3
2. k:5/9=1,8:6
3. 5,5:8=k:2/11
4. 20:3,25=4/13:k
​

Answer 1

3/7:k=5:2 1/3
3/7:k=5*3/7
3/7:k=15/7
K=3/7:15/7
k=3/7*7/15
k=1/5