Плиз решите умоляю^_^ ♥♥♥♥♥♥
5/7=10/14=20/28 9/11=18/22=27/33 3/4=6/8=9/12 7/9=14/18=21/27 8/7=16/14=24/21 9/4=18/8=27/12 7/3=14/6=21/9 4/4=5/5=6/6=7/7