1) 5/12 =30/72=60/144=210/504
2) 11/18=44/72=88/144=308/504
30/72, 60/144, 210/504 - для 5/12
44/72, 88/144, 308/504- для 11/18
1) 5/12 =30/72=60/144=210/504
2) 11/18=44/72=88/144=308/504
30/72, 60/144, 210/504 - для 5/12
44/72, 88/144, 308/504- для 11/18