сократите дроби 2-4 5-15 6-10 8n-14n 3-6 4-12 5-20 6n-18n 14-21 13-39 24-36 17n-51n 3-18 4-16 18-54 13n-52n

2/4=1/2
5/15=1/3
6/10=3/5
8n/14n=4/7
3/6 =1/2
4/12=1/3
5/20 =1/4
6n/18n=1/3
14/21=2/3
13/39=1/3
24/36=2/3
17n/51n=1/3
3/18=1/6
4/16=1/4
18/54=1/3
13n/52n=1/4