Сократи дроби. Срочно помогите.

2/14=1/7
18/21=6/7
32/36=8/9
20/28=5/7
45/72=5/8
27/57=9/19
9/12=3/4
45/50=9/10
15/27=5/9
35/60=7/12
25/85=5/17
18/44=9/22
60/125=12/25
20/48=5/12
6/22=3/11
20/55=4/11
36/63=4/7